. The reactivity of compound Z with different halogens under

The reactivity of compound Z with different halogens under appropriate conditions is given below :

The observed pattern of electrophilic substitution can be explained by

A.  the steric effect of the halogen

B.  the steric effect of the tert−butyl group

C.  the electronic effect of the phenolic group

D.  the electronic effect of the tert−butyl group