Answer:
c. It should reduce encumbrances by $200,000
Explanation:
Based on the information given the city should handle encumbrance accounting when it prepares the $200,000 voucher to pay for the first two trucks by REDUCING THE ENCUMBRANCES by the amount of $200,000 which represent the amount for the trucks received, calculated as ($100,000 * 2 trucks).
Therefore IT SHOULD REDUCE ENCUMBRANCES BY $200,000