Answer:
A form of "most".
Explanation:
Such as:
Warmest
Coldest
Fastest
: Most warm, Most cold, Most fast.
A is correct.
B's mistake is hard to see, but it is there.
C has no punctuation where it's needed.
D sounds like this: "This shovel is old and rusty it is good enough. However, for the little bit of gardening we do." It sounds rushed in the beginning and the mark doesn't help.
To understand the main idea of an informational text, you should ask yourself
“Does the author include relevant details?”
“What is this mostly about?”
“Which facts support the claim?”
“What evidence does the author provide?”
He wants to fight them for crashing the party.