What does crammed mean
¿Qué significa cram?
Just in case if you don’t know English:)

Crammed means completely fill (a place or container) to the point that it appears to be overflowing or study intensively over a short period of time just before an examination. The word crammed mostly means to fill (something) by force with more than it can easily hold. to force or stuff (usually followed by into, down).

uh, the answer is d i guess.