a$)$ i$)$ List THREE $(3)$ types of JFET configuration. $($CLO$1)$ ii$)$ Draw only TWO $(2)$ types of JFET configuration. $($CLO$2)$ b$)$ The BJT$\text{'}$s as an amplifier is an electronic device that increases the voltage, current or power of a signal and there are several types of amplifiers. With aids of diagram, describe the categorize of BJT$\text{'}$s as a Class A and Class B amplifier. $($CLO$4)$