Explanation:

Odd one out:
The odd one out is option 'C' - Hammer.

Reasoning:
The reason why the hammer is the odd one out is because it is the only tool on the list that is not primarily used for cutting or slicing.

Explanation:
Here is an explanation of why each option is either similar or different from the others:

A) Axe:
- An axe is a tool used for cutting wood or other materials by striking it with force.
- It has a sharp blade on one side and a handle for gripping and swinging.
- The primary purpose of an axe is to chop or split wood, making it similar to a knife and scissors.

B) Knife:
- A knife is a utensil with a sharp blade used for cutting or slicing.
- It is commonly used in the kitchen for food preparation and can also be used for various other purposes.
- The primary purpose of a knife is to cut or slice, making it similar to an axe and scissors.

C) Hammer:
- A hammer is a tool with a heavy head and a handle used for striking or pounding objects.
- It is typically used in construction or carpentry to drive nails into materials.
- The primary purpose of a hammer is to strike or pound, making it different from an axe, knife, and scissors.

D) Scissors:
- Scissors are a cutting instrument consisting of two blades pivoted together.
- They are used for cutting various materials such as paper, fabric, or hair.
- The primary purpose of scissors is to cut or trim, making them similar to an axe and knife.

Conclusion:
Based on the given options, the odd one out is the hammer because it is the only tool that is not primarily used for cutting or slicing. Axes, knives, and scissors are all cutting tools, whereas a hammer is used for striking or pounding.