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.
Answer:
Im not sure if this is correct but i think it is directs object
Explanation:
The poet is talking about a dying father so i would figure the answer is C to interpret
