Question: What is the significance of \'graph theory\' in modern mathematics?

Options:

1. It is only applicable in theoretical mathematics.
2. It helps in understanding relationships and networks.
3. It is irrelevant to real-world applications.
4. It focuses solely on linear equations.

Correct Answer: It helps in understanding relationships and networks.

Solution:

Graph theory is significant as it helps in understanding relationships and networks, which are prevalent in various fields.