Answer:
E. Halt some ambulance shifts, and suspend
Explanation:
This statement is clearly to be completed, in the same tense.
Thus, when in the statement there is talking about a budget that is proposed, the results or outcomes of such proposals are yet to be achieved.
Therefore, using have in such sentence is not correct, thus option A is incorrect.
Again in option B and D, the word suspending is not correct as will relate to either past or the present and to the future, as the results are not sure, it is not correct.
The use of phrase as well as is not necessary, and in fact not correct, as it is used when the statement states more outcomes then these two outcomes of halt in ambulance and suspend.
Thus, option E is correct.