Object A has a charge of -1 Coulomb, which means it will attract positive charges and repel negative charges.
Among the options given:
- +1C: This charge is positive and will be attracted to the negative charge of object A.
- +2C: This charge is also positive and will be attracted to the negative charge of object A, but with a greater force due to its larger magnitude.
- -2C: This charge is negative and will be repelled by the negative charge of object A.
- -1C: This charge is also negative and will be repelled by the negative charge of object A.
Since positive charges are attracted to negative charges, object A will attract both +1C and +2C, but the attraction will be stronger for +2C because it has a larger magnitude.
Thus, the object with the charge that would be most strongly attracted by object A is +2C.