help please i dont know what to do. its a wittig reaction.

Draw the structure(s) of the major organic product(s) of the following reaction. - You do not have to consider stereochemistry. - You do not have to explicitly draw H atoms. - Do not include lone pairs in your answer. They will not be considered in the grading. - If no reaction occurs, draw the organic starting material. - Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. - Separate multiple products using the +sign from the drop-down menu