Digital signals
(`i`) do not provide a continuous set of values.
(`ii`) represents values as descrete steps.
(`iii`) can utillize binary system
(`iv`) can utillize decimal as well as binary system.
The true option is.
A. Only (i) and (ii)
B. Only (ii) and (iii)
C. (i),(ii) and (iii), but not (iv)
D. All the above (i) to (iv)
