Isobutyl magneisum bromide with dry ether and absolute alcohol gives
A. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)OH` and `CH_(3)CH_(2)MgBr`
B. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)` and `Mg(OH)Br`
C. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(3),CH_(2)=CH_(2)` and `Mg(OH)Br`
D. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(3)` and `CH_(3)CH_(2)OMgBr`