Find out the major product from the following reaction.

In the following reaction, 'B' is

'$$\mathrm{X}$$' is :

But-2-yne is reacted separately with one mole of Hydrogen as shown below :

A. A is more soluble than B.

B. The boiling point & melting point of A are higher and lower than B respectively.

C. A is more polar than B because dipole moment of A is zero.

D. $$\mathrm{Br_2}$$ adds easily to B than A.

Identify the incorrect statements from the options given below :