The formulae of four organic compounds are shown below. Choose the correct option

These are the options for the question:

(a) A and B are unsaturated hydrocarbons
(b) C and D are saturated hydrocarbons
(c) Addition of hydrogen in presence of catalyst changes A to C
(d) Addition of potassium permanganate changes B to D

The correct answer is : (c) Addition of hydrogen in presence of catalyst changes A to C