Correct Answer:
D. Think about
The word Ponder means to think about something carefully, especially before making a decision or reaching a conclusion. Therefore, its closest synonym is Think about.
- Ignore means to refuse to take notice of or acknowledge something, which is the opposite of pondering.
- Forget means to fail to remember something, which is unrelated to the act of thinking deeply.
- Laugh is an expression of amusement and has no semantic connection to the act of careful thought.
Understanding the core meaning of 'ponder' as deep consideration makes 'think about' the most accurate synonym.