Jam-packed!

Do you know the English expression “to be jam-packed“? Read the conversation below. Can you guess the meaning?

Kumiko: Jane is late this morning. I wonder what’s happened.

Tim: I’m not surprised. The roads are jam-packed. I think there was an accident on the highway.

Does it mean:

a) blocked by an accident

b) covered in jam

c) very crowded

d) narrow

The answer is below! ↓

 

Answer: c) very crowded