Though lively and emotional, the debate over whether certain psychological problems are genetically determined or cemented in early childhood is ultimately irrelevant to the treatment of those problems.

A) Though lively and emotional, the debate over whether certain psychological problems are genetically determined or cemented in early childhood is ultimately irrelevant to the treatment of those problems.

B) The debate if certain psychological problems are determined by genetics, as opposed to cemented in early childhood, is ultimately irrelevant in treating those problems.

C) Regardless of whether certain psychological problems are genetically determined or cemented in early childhood -- the subject of lively debate -- they are ultimately irrelevant to psychological treatment.

D) Certain psychological problems may be determined genetically or cemented in early childhood -- the subject of lively and emotional debate -- but are ultimately irrelevant to their psychological treatment.

E) Even though lively and emotional debate exists whether certain psychological problems are genetically determined or cemented in early childhood, it is ultimately irrelevant to psychological treatment.

OAA

I was stuck between A and C.

I need a reason to eliminate option C .

Please advise.