A dragster is travelling at a speed of 100 km/h.

It increases its speed by

- 50 km/h in the 1st second
- 30 km/h in the 2nd second
- 18 km/h in the 3rd second

and so on in this pattern.

Correct to the nearest whole number, the greatest speed, in km/h, that the dragster will reach is

**A.** `125`

**B. ** `200`

**C.** `220`

**D. ** `225`

**E. ** `250`