Use the diagram below to answer the question
Which of the labelled part is used to determine a good layer?
A.
I and II only
B.
II and III only
C.
I and III only
D.
II and IV only
Correct answer is C
For a good layer, the combs and wattles should be full, large, waxy, bright red and warm. A poor layer has small, scaly, pale, and shrivelled comb and wattles.