Object A has a charge of -1 Coulomb. According to the law of electrostatics, opposite charges attract each other while like charges repel each other.
Given the options:
- -2 C (like charge, repulsive)
- +2 C (opposite charge, attractive)
- -1 C (like charge, repulsive)
- +1 C (opposite charge, attractive)
The strongest attraction would occur with the charge that has the highest magnitude and is opposite in sign. Therefore, the object with charge +2 C would be most strongly attracted to object A (-1 C).
So, the correct response is:
+2 C.