The indicator, HIn is used in a titration between an acid and base. Which statement about the dissociation of the indicator, HIn is correct?

$${\text{HIn(aq)}} \rightleftharpoons {{\text{H}}^ + }{\text{(aq)}} + {\text{I}}{{\text{n}}^ - }{\text{(aq)}}$$

colour A                             colour B

A.     In a strongly alkaline solution, colour B would be observed.

B.     In a strongly acidic solution, colour B would be observed.

C.     ${\text{[I}}{{\text{n}}^ - }{\text{]}}$ is greater than [HIn] at the equivalence point.

D.     In a weakly acidic solution colour B would be observed.

A