Hazel's Business Bank Account Was Overdrawn by £3000 and She

Hazel's business bank account was overdrawn by £3000 and she has £6000 owing to her from customers. During the period she receives cheques for £5 200 and hears that a customer who owed her £300 has been declared bankrupt. What is the effect of the above transactions on net assets ?

A) Increase net assets by £5 200
B) Increase net assets by £4 900
C) Decrease net assets by £300
D) Decrease net assets by £800