Question

http://prntscr.com/94zhp3 Which one of should no.3 be?

Answer 1

And I'm wondering if the reset of my answers are correct. xD

Answer 2

no.3 should be equilateral triangle has three sides the same length. But there is no answer for it.

Answer 3

Well, it's either A. B. C. Or D.

Answer 4

But in column a you have 5 terms and in column b you have 4 definitions