Given the signal $x(t)$ as below

then $\frac{dx(t)}{dt},$ can be written as

Select one:

a$.\frac{dx(t)}{dt}=-2(t+1)+4(t)-2(t-1)$

b$.\frac{dx(t)}{dt}=2(t+1)+4(t)+2(t-1)$

c$.\frac{dx(t)}{dt}=-2(t+1)-4(t)-2(t-1)$

d$.\frac{dx(t)}{dt}=-2(t+1)-4(t)+2(t-1)$