anybody able to help with the following reaction mechanism questions and predicting products as well

(a) Suggest a synthesis of the following alkene (A) using a Wittig reaction strategy. Draw the starting material(s), key reagent and a full reaction mechanism including an explanation of the observed geometry. [15 marks] (b) Which of the following (B) and (C) will favour the enol form? Briefly explain your reasoning. [5 marks] (c) Predict the product(s) and provide a mechanism for each of the following transformations: (i) (ii)