An arms race is a situation in which two or more countries or groups of countries are continually trying to get more weapons and better weapons then the other groups in case of a possible attack.
An arms race
Answer: Frankenstein is tortured by guilt, whereas the monster is tortured by rejection - APEX!!!
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.
The answer is A. also, No Tears Left To Cry comes out tonight ;)