Question

Question
IUPAC name for the given molecule is
&
(1) 2-cyclopropenylbutane
(2) 2-1-methylpropyl) cycloprop-1-ene
(3) 3-(1-methylpropyl) cycloprop-1-ene
(4) 2-(cycloprop-2-enyl) butane
Option 1​

Answer 1

2 nd answer is correct

$2$