i will say you have the right answer selected in the photo
62500 - 56100 = 6400 - number of retrivers u lost per year.
Answer need to be lower then 62,5 and 56,1 thousand so no (A) and not (D)
Number is reduce by 6400 and starting amount was 62500, 2 zeros and end must stay there in answer so not (B)
Then it must be (C)
Or u can calculate 62500 - 9*6400 = 4900
<h3>
Answer:</h3>

<h3>
Explanation:</h3>
<u>Sequence</u>: 1.2, 0.4, -0.4, – 1.2, -2,...
See that with every next term, the integers are decreasing by 0.8
- So, common difference (d) = -0.8
<u>recursive formula</u> : 

The answer is to this question is c