1-chloro-2-methylprop-2,3-ene
1-chloro-2-methylprop-2-ene
3-chloro-2-methylprop-1-ene
3-chloro-2methylprop-1,2-ene
Correct answer is C
It is vital you rearrange/redraw the structure if confusing this will make naming the compound easier. the name of the compound above is 3 - chloro-2- methyl prop - 1 - ene.