Answer: a. Wholly owned subsidiary
Step-by-step explanation:
The only method listed that would give you strong control and coordination of the new business in Italy is that of a wholly owned subsidiary. You would have a 100% control over such a company and could do what you wanted with it including transferring knowledge back to China without impediment.
Exporting provides little control. Franchising provides limited control. Strategic alliance means that you have to share control with another entity and licensing provides only limited control as well.