The figure gives the x-t plot of a particle executing a one-dimensional simple harmonic motion. Then the signs of position & velocity variables of the particle at t = -1.2 sec respectively are:

\(\left(1\right) positive ,   negative\)
\(\left(2\right) positive ,   positive\)
\(\left(3\right) negative ,   positive\)
\(\left(4\right) negative ,   negative\)$$

The position-time \((x\text-t)\) graphs for two children \(A\) and \(B\) returning from their school \(O\) to their homes \(P\) and \(Q\) respectively are shown in the graph. 
           
Choose the incorrect statement:

The instantaneous speed is always: