Answer:
b. $100,000
Step-by-step explanation:
Provided information
Beginning balance of account receivable = $25,000
Collection from customers = $100,000
Ending balance of account receivable = $15,000
Since we have to find out the gross taxable income, so we considered only the collection from customers as this is the amount which is received and therefore, it has come under the gross taxable income i.e $100,000.