The table below displays the total utility derived by a consumer from drinking cups of premium organic matcha latte.
| Quantity of Matcha Lattes | Total Utility (Utils) |
|---|---|
| 1 | 24 |
| 2 | 45 |
| 3 | 63 |
| 4 | 78 |
| 5 | 90 |
| 6 | 99 |
| 7 | 105 |
What is the marginal utility derived from consuming the fifth cup of matcha latte?
18
15
12
9
