The efficiency index used by a milk producer to qualify his cows is given by the product of the lactation time (in days) by the average daily milk production (in kg), divided by the interval between births (in months). For this producer, the cow is qualified as efficient when this index is, at minimum, 281 kilograms per month, always maintaining the same management conditions (feeding, vaccination and others). When comparing two or more cows, the most efficient is the one with the highest index.
The table presents the data collected from five cows:
| Cow | Lactation time (in days) | Average daily milk production (in kg) | Interval between births (in months) |
| Malhada | 360 | 12.0 | 15 |
| Mamona | 310 | 11.0 | 12 |
| Maravilha | 260 | 14.0 | 12 |
| Mateira | 310 | 13.0 | 13 |
| Mimosa | 270 | 12.0 | 11 |
After analyzing the data, the producer evaluated that the most efficient cow is
(A) Malhada. (B) Mamona. (C) Maravilha. (D) Mateira. (E) Mimosa.