You have finished updating and resolving dependencies for some source code.
What command should you run before recompiling the code into binary form?

A.
make clean

B.
make all

C.
makedep

D.
make install

Explanation:
When dependencies for source code change, it is best to be on the safe side and delete all previously compiled objects/binaries. make clean will do exactly that.

make all will also delete all targets, before starting the recompile, making this the right answer also.