A because my computer hates me is one sentence and I really think it does is another sentence so you can't have 2 sentences in one
The correct answer is A. The tree was planted by Mary.
This can easily be noticed because of the construction "was planted" and the "by Mary" action doer positioning.
I would say the correct answer is C. <span>The skilled photographer shot a massive oak tree, using the scarlet sunset as an incredible background.
You can achieve a lot of sensory details by providing many descriptive adjectives. As you can see, in this sentence we have adjectives such as skilled, massive, oak, scarlet, incredible, which are descriptive enough so that we can almost imagine the scenery.</span>
The first answer is the truth