Read the situation given below and classify it.
A customer walks into a general merchant's shop and while buying 'Dove' soap discovers that he can get a stainless steel spoon free if she buys 'santoor' soap. Therefore, she bought 'santoor' soap.
1
It is an Advertisement
2
It is a Publicity.
3
It is neither advertisement nor publicity.
4
It is both, advertisement as well as publicity.