Answer:
b. positive
Explanation:
A negatively charged object A has excess electron while uncharged object B is neutral, i.e equal number of electrons and protons.
When the negatively charged object A is brought in contact with the neutral object B, the electrons present in object B will be repelled (likes charges repel). This process will leave object B with excess protons, thus object B will positively charged.
The correct option is "B"
