Answer - B. P-type
In an N channel JFET, the gate is P-type.
The detailed solution to the question In an n channel JFET, the gate is provided here.
The Schematic of an n-channel JFET is as shown-
The gate is P-type connected to the negative supply, i.e., reverse biased to control the flow of electrons.
Therefore, In an n channel JFET, the gate is p-type. Hence, Option (B) is correct.