In the following, electric charges determine the charge Q1, if it is known that the force of attraction or repulsion between them is shown in the figure, and select the correct answer.
Q1 Q2
225 mm
FR = 3x10^-4 N
5 µC
a. 337.5mC
b. 33.75nC
c. 3.375uC
d. 3.335pC