The compounds that will give an isomer of 2,2-dimethyl propane on catalytic hydrogenation are

(i) 

(ii) ${\mathrm{CH}}_3-\mathrm{CH}={\mathrm{CHCH}}_3$

(iii) ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CHCH}}_2{\mathrm{CH}}_3$

(iv)

• A

  (i) and (iv)

• B

  (ii) and (iv)

• C

  (i) and (iii)

• D

  (i) and (ii)