`C_(2)H_(5)-underset(O)underset(||)(C)-Br overset("I R -Mg-x(EXCESS)")underset((ii) H_(2)O^(o+))to CH_(3)-overset(CH_(3))overset(|)(C)H-overset(C_(2)H_(5))overset(|)underset(OH)underset(|)(C)-underset(CH_(3))underset(|)(CH)-CH_(3)`
The alkyle group R of the reagent will be :
A. `CH_(3)-CH_(2)-`
B. `CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(2)-`
C. `CH_(3)-`
D. `CH_(3)-overset(CH_(3))overset(|)(C)H-`
