A) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
B) (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
C) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
D) (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
Explanation
[Solution] Housefly: family Muscidae, order Diptera, class Insecta, phylum Arthropoda. Answer (1).