Please help me to answer. See the attached photo below

2. X binds himself to construct the store of B. It was agreed upon that the store shall have three (3) wooden cabinets, a comfort room and sliding doors. a. Suppose X did not perform his obligation and B filed a case for specific performance against the former. The court rendered a decision granting the relief prayed by B. Is the decision tenable? b. If X did not commence the construction of the store, can B ask D to construct the house? c. Suppose X constructed the store but contrary to stipulations of the parties. X refused to do it according to the specifications agreed upon. What is the remedy of B