[单选题]
Is it possible for a positive and a negative charge to attract e7fraky: c* y;thb7t s k/.do6ide a s 9spz1 qbmqh9fhd.((70bach other?
A. Yes, they always attract.
B. Yes, they will attract if they are close enough.
C. Yes, they will attract if one carries a larger charge than the other.
D. No, they will never attract.