vidisha placed a copper wire in silver nitrate solution. After sometimes she noticed that the colour of the wire and solution changed. What did she observed?

a-the colour of the solution turns blue and precipitate of solid silver is obtained.

b-colour of solution turns green and copper wire turns blue.

c-there is no change in the colour of the solution or colour of the wire.

d-colour of the solution becomes silver and there is no changein the colour of the copper wire.

answer the question and explain.