1. As the owner of a women's clothing store, Karen Montenegro has an income of $75,000. She pays $30,000 per year in taxes and another $17,000 per year in grocery bills, house mortgage, and car payment. Last year she went to Italy and spent an additional $4,000. What was Karen's discretionary income last year?
A- $45,000
B- $75,000
C- $26,000
D- $28,000