Single slider crank mechanism consist of one sliding pair and three turning pairs.

Some inversion of single slider crank mechanism are:

(i) Whitworth quick-return mechanism

(ii) Crank and slotted-lever mechanism

(iii) Oscillating cylinder engine

(iv) Pendulum engine

Double slider crank mechanismconsists of two sliding pairs and two turning pairs.

Its inversions are:

(i) Elliptical trammel

(ii) Scotch yoke mechanism

Hence, the correct option is (D).