2, 2, 3, 3-tetrabromo butane $\underset{∆}{\overset{\mathrm{Zn}/{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}}{\to }}\mathrm{X}$ ; Number of linear atoms in the compound ‘X’ are

• A

  0

• B

  2

• C

  1

• D

  4