Answer:

To understand the answer to this question, let's break down the different options and analyze them one by one.

a) 0:
If we were to read the columns of a matrix and represent each element in binary notation, the number 0 would be represented as '0000'. However, this option does not make sense because it suggests that all elements in the matrix are zeros. In other words, every column would consist of only zeros, which is highly unlikely.

b) 1:
This option suggests that each element in the matrix would be represented by '0001' in binary notation. This means that every column would have a 1 in the last position and zeros in the other positions. This is a more reasonable representation because it allows for a variety of values in the matrix. Therefore, option 'B' is the correct answer.

c) F:
The option 'F' is not a valid answer because it represents a hexadecimal value, not a binary value. In binary notation, 'F' would be represented as '1111'. So, this option does not align with the question's requirement of representing elements in binary notation.

d) 7:
Similar to option 'c', the number 7 is represented in decimal notation, not binary notation. In binary, 7 would be represented as '0111'. Therefore, this option does not satisfy the requirement of representing elements in binary notation.

In conclusion, the correct answer is option 'B' because it correctly represents the elements of the matrix in binary notation, with a 1 in the last position and zeros in the other positions.