Which step is shown?

: caqsmqej4vhkjfnxf30ajqelekju20doxt6 e9wdmqqve9sdgan5e6ak2t3fpemz5dpgpd8 9nj2akfk9yz0amnebbkmv5ctfigzczgnnky vxkj9oi1i6znx_1xphcz8r2o27-cbokcggi arieo_17mtqw& sa=x& ved=0ahukewiy6oy-vkdhahvs5imkhtksa6 mqwg4ikyga

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

it is either c or d and i know for sure it is not a or b