Step-by-step explanation:

D would not correctly solve the problem it is adding more kittens instead of eliminating the ones already known
Answer
AB would be the same as the original because the size never changes.
Step-by-step explanation:
Answer:
Yes it is.
Step-by-step explanation:
When we mix Fe(iron) to CuSO⁴ (Copper sulphate), Iron removes copper from CuSO⁴ and makes FeSO⁴. This happens because iron is more reactive than copper. We cannot remove iron from this solution now until any stronger element is added.
306/2 = 153*2 = 306
153/3 = 51*3 = 153
51/3 = 17*3 = 51
2,3,3,17 = all prime numbers.
306 = 2*3*3*17