The correct answer is A.
An Adverb Clause, also known as Adverbial Clause has the function of an adverb, and, in this case, it answers the question how, and talks about a possible situation and consequences: If you don't buy the tickets in advance, <em>you may not be able to get them</em>. The second sentence is a possible situation in the case of a delay to buy the tickets.
D. a logical interpretation of an observation.
I feel like this answer should've included that it's on the basis of evidence and reasoning
<span>an advocate or follower of fascism.</span>
For Apex its "A poet writes a poem from the Minotaur's point of view after viewing Dore's illustration of the Minotaur from Dante's Inferno.
