Answer:
A. Use incentive controls that are linked to higher-level performance.
C. Matrix structure.
Step-by-step explanation:
Since in the question it is mentioned that Google has 7 business units as organized by page also at the same time the vice president has the full responsibility with respect to the success of each units so here the control would be that by using the incentive controls that are interconnected to the performance i.e. outsanding would results into the success of the each unit.
As Google has seven business units so here the structure form is of matrix structure as it deals with more than one organization structure that involves more responsibility, authority etc