Answer:
D. $102,000
Step-by-step explanation:
The computation of the effective gross income is shown below:-
Effective gross income = Gross income - Vacancy expense
= ($2500 per month cost × 12 months × 4 office units) - ($2500 per month cost × 12 months × 4 office units × 15% collective losses)
= ($2,500 × 12 × 4) - (($2,500 × 12 × 4 × 15%)
= $120,000 - $18,000
= $102,000