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.
Which excerpt are we referring to with this?
Reliable is something you could rely on like depend on
The correct answer is a person who can be depended on
My brother cut the grass on Saturday.
It is a simple sentence since it contains a subject (<em>My brother</em>) and a verb (<em>cut)</em>. It also has a direct object (<em>the grass</em>) and a prepositional phrase of time (<em>on Saturday</em>). It is important to state that a sentence must have a complete idea and stands on its own. That's why this type of sentence is called independent clause.
