A welfare recipient receives a cash transfer of USD 100 per week. This grant is not reduced if the recipient earns less than USD 20 per week. However, after the recipient earns more than USD 20 per week, the grant is reduced by 66 cents for each dollar of earnings. The cash transfer will be reduced to zero if the recipient earns:

a.USD 131.52 per week.

b.USD 171.52 per week.

c.USD 151.52 per week.

d.USD 100.00 per week.