Answer:
Option A is correct.
the profit for January was $2,300
Explanation:
As per the statement:
In January, wally's widget world had sales of $12,500 and expenses of $10,200
⇒wally's widget world had sales(S.P) = $12,00 and expenses = $10,200.
By using formula:

Substitute the given value we have;

Therefore, the profit for January was $2,300