Read the text below and identify its main point:
"To truly grasp a new concept, don't just passively read your textbook. Instead, try explaining it in your own words to a friend, creating a mind map, or teaching it to an imaginary audience. Active learning techniques like these engage your brain more deeply, leading to better understanding and longer retention of information."
A) Reading textbooks is an ineffective way to learn.
B) Teaching others is the only effective way to learn new concepts.
C) Active learning methods improve comprehension and memory.
D) Students should always study with a friend or in groups.
E) Mind mapping is the best active learning technique.