Select the correct statement from the ones given below with respect to Periplaneta americana.
A. There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
B. Grinding of food is carried out only by the mouth parts
C. Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connective
D. Males bear a pair of short thread like anal styles