The Colonists are supposedly annoying, And they want them gone.
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.
“Another tropical storm” is the complete subject. And the simple subject is “tropical storm”
Hope it works! Good luck:)