Answer:
A). that the villain is lying to the junior detective
Step-by-step explanation:
The readers can deduce that the detective cross-checks every statement or testimony given by villian and also notices his/her ticks and blinks in order to identify if he/she is lying ot trying to manipulate the case. It assists the readers in understanding how detective notices every action of the villian while interviewing to dig out the real truth and ensure that the real culprit is punished and no innocent suffers punishment. Thus, option A is the correct answer.