Which structure represents (R,Z)-5-methylhept-2-ene?

Question

Which structure represents (R,Z)-5-methylhept-2-ene?

https://imgur.com/a/p35gQbk

Answer 1

The answer is E - none of the choices.

Answers C and D can be eliminated because on C-5, there is an ethyl group, and not a methyl.

In answer choice B, the double bond is E, therefore, this answer can be eliminated as well.

Answer choice A has the double bond Z, however, the stereochemistry on C-5 is (S), not (R).