Use your understanding of the word part -ful to figure out what "plentiful" means.
If something is plentiful, you'll need to make more of it.
If something is plentiful, there is lots of it available.
If something is plentiful, you can find it only in a few places.
If something is plentiful, there isn't much left.
Answers
Answer 1
The answer is the second one! If something is plentiful, there is lots of it available