1) t-butyl can't give decarboxylation while normally $\alpha$-$\beta$ unsaturated acid give this reaction because A) t-butyl gp. has large size and does not let the COOH group to leave B) t-butyl gp. cannot extract H from COOH C) t-butyl gp. stabilise carbanion formed D) t-butyl gp. does not allow this composition to convert to $\beta-\gamma$ -unsaturated acid Answer: Option CExplanation: Because of the +1 effect, the t-butyl group destabilises the carbanion
