Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Grade | Points | Sit-up (reps) | Standing Broad Jump (cm) | Chin-up (reps) | Shuttle Run (sec) | 2.4km Run (min:sec) |
| --- | --- | --- | --- | --- | --- | --- |
| A | 5.0 | >33 | >224 | >7 | <10.6 | <11:41 |
| B | 4.0 | 31-33 | 216-224 | 6-7 | 10.6-10.7 | 11.41-12:15 |
| C | 3.0 | 28-30 | 207-215 | 4-5 | 10.8-10.9 | 12:16-12:50 |
| D | 2.0 | 25-27 | 198-206 | 3 | 11.0-11.1 | 12:51-13:25 |
| E | 1.0 | 22-24 | 189-197 | 2 | 11.2-11.3 | 13:26-14:00 |
Question:
If a person does 3 chin-up reps, what grade do they obtain?
Answer:
D