Answer:
C) Third
Step-by-step explanation:
The first meal gives you 4 units of utility for every dollar spent (= 100 utility / $25).
The second meal gives you 5 units of utility for every dollar spent (= 10 utility / $2).
The third meal gives you 10 units of utility for every dollar spent (= 50 / $5). We should choose the meal that provides us with the greatest utility per dollar.