I believe C is the answer
Hope this helps
Because genetics is now progressing so rapidly.
The subordinate clause starts with a subordinating conjunction and contains the entire dependent clause. Because is a subordinate conjunction and makes the clause dependent because you need to know what's next. Hopefully answer choice D has all the right pieces. The main clause is "it is revolutionizing medical research". This clause is a complete idea by itself and is not a subordinate clause.
D) mild.
Explanation:
Ardent: enthusiastic or passionate
Mild: not severe, serious or harsh
An antonym is the expression of something being the opposite. Therefore the answer would be D.
