Select the most appropriate option to fill in blank number 2.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. with.
It is clear from the sentence structure: “packed ______ protein” — the correct preposition used with “packed” in this context is “with.”
Other options (for, on, at) do not fit grammatically in this phrase.
Hence, the chosen option will be correct.