Which term means 'To enter something and spread thoroughly'?

• A. Penetrated
• B. Infiltrated
• C. Permeated
• D. Seeped

Answer: (C)

To enter something and spread thoroughly is described by permeate. Permeate means to pass through and spread throughout a space or substance, so it fills every part of it. For example, a scent can permeate the room, or dye can permeate fabric, indicating thorough spread. The other terms carry different nuances: penetrate focuses on entering through a surface or barrier, infiltration often implies secret entry, and seep refers to slow leakage through small openings without necessarily filling the whole area. So permeated best matches the idea of entering and spreading through completely.