Overlapping based reasoning questions in order and ranking reasoning involve:

Determining the position of a person from left or right end:
In order and ranking reasoning questions, determining the position of a person from the left or right end is a common type of question. These questions typically provide information about the position of a person in a sequence or line and ask you to determine their position from one of the ends. For example, the question may state that "A is 5th from the left end, and B is 3rd from the right end. What is the position of A from the right end?" In this case, you would need to count the number of people from the right end until you reach A's position.

Finding the number of persons between two people:
Another type of overlapping based reasoning question involves finding the number of persons between two given people. These questions usually provide information about the positions of two people in a line and ask you to determine the number of people between them. For instance, the question may state that "A is 4th to the right of B. How many people are there between A and B?" In this case, you would need to count the number of people between A and B by subtracting their positions.

Interchanging the positions of two people:
Sometimes, overlapping based reasoning questions may require you to interchange the positions of two people based on certain conditions. These questions usually provide information about the positions of two people and ask you to determine their new positions after interchanging. For example, the question may state that "A is 2nd to the right of B, and after interchanging their positions, B becomes 4th from the left end. What is the new position of A?" In this case, you would need to determine the new position of A after interchanging.

Comparing different quantities to determine the correct order:
In order and ranking reasoning questions, you may also be asked to compare different quantities, such as ages, heights, or distances, in order to determine the correct order. These questions typically provide information about the quantities associated with different people and ask you to arrange them in a particular order. For instance, the question may state that "A is taller than B, but shorter than C. D is taller than both A and C. Arrange the people in order of their heights from shortest to tallest." In this case, you would need to compare the heights of different people and arrange them accordingly.

Therefore, option B is the correct answer as overlapping based reasoning questions in order and ranking reasoning involve finding the number of persons between two people.