Which of the following synthesis gives 3-methyl -1- hexanol ?
A. 2- Bromohexance ` overset("Mg") underset("dry ether")to overset("(i) HCHO") underset("(ii)" H_(3)O^(+)) to `
B.
C. 3- Bromopentane `overset("Mg") underset("dry ether ") to overset("(i) CH_(3)CHO) underset((ii) H_(3)O^(+)) to`
D. 1- Bromobutane ` overset("Mg") underset("dry ether") to overset((i) CH_(3)COCH_(3)) underset((ii) H_(3)O^(+))to`
