How many sp² carbon atoms are present in the product formed from the given reaction?

Identify A in the given chemical reaction:

1.		2.
3.		4.

The major product of the following reaction is:

1.		2.
3.		4.

The correct sequence of reagents used in the preparation of 4-Bromo-2-nitro-1-ethyl benzene from benzene is:$\begin{array}{l}\end{array}$

Given the following reaction:

1.		2.
3.		4.

The product A in the following reaction is:              

1.		2.
3.		4.

Consider the following reaction, 

The major product in the above reaction is:

1.		2.
3.		4.

The major product among the following reaction is:

1.		2.
3.		4.