Which word means to think carefully for a length of time?

• A. Amicable
• B. Strata
• C. Ruminate
• D. Derelict

Answer: (C)

To ruminate is to think deeply and at length about something, weighing options before deciding. It conveys a slow, careful contemplation, like chewing the cud metaphorically. You might say someone ruminates over a decision for days or hours, giving thoughtful consideration rather than a quick answer. The other words describe different ideas: amicable means friendly, strata refers to layers or social levels, and derelict means abandoned or neglected. So ruminate best captures the sense of prolonged, careful thought.