4 weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 16 weavers in 16 days? Choose the correct answer
A) 16
B) 32
C) 64
D) 96
E) 128

Rationale: "1 weaver can weave 1 mat in 4 days . 16 weavers can weave 16 mats in 4 days . 16 weavers can weave 64 mats in 16 days . the answer is c ."
Answer: C