Answer:
Our branch office currently employs five tellers, who do an excellent job Monday through Thursday but cannot keep up with Friday and Saturday rush periods.
Hope this helped you!
Explanation:
The author is saying that because of humans and the ways they are impacting earth is causing irreparable changes like causing animals to go extinct, etc.
A - Although he denies them, Dr. Vasequez faced several scandals last year.
A complex sentences must have both a dependent clasuse (although he denies them) and an independent clause (Dr. Vasquez faced several scandals last year.
Options B and D are compound sentences (two independent clauses) and option C is a simple sentence.
