Explanation:

- Section 94 of IPC deals with acts done under compulsion, or threats, which means that an act committed under duress is not punishable.

- Section 95 of IPC involves acts that cause slight harm, not counted as an offense due to their trivial nature.

- Section 96 of IPC is about the right of private defense in India. It states that nothing is an offense which is done in the exercise of the right of private defense.

- Section 98 of IPC covers acts committed by a person suffering from physical or mental incapacity, which typically wouldn't be justified.