In a clinical study, 55 women were randomly distributed into 5 groups of 11 people. To test a new medication, a group will be chosen in which the majority of women are between 20 and 30 years old. The other groups will take placebo or medications already on the market. The table, partially filled, provides some data related to the ages of women in these groups.
| Groups | Minimum age | Maximum age | Mean | Median | Mode | Standard deviation |
| 1 | | | 25 | | | 10 |
| 2 | | | | 25 | | 9 |
| 3 | | | | | 25 | |
| 4 | | | 25 | | | 1 |
| 5 | 20 | 35 | | | | |
Even with the incomplete table, it was possible to select one of these groups because, with only the data presented in the table, a group was identified that certainly met the selection criterion.
The group chosen was
(A) 1.
(B) 2.
(C) 3.
(D) 4.
(E) 5.