W + Z ÷ P ÷ R × T –Q → W is wife of Z, Z is Father of P, P is father of R, R is sister of T, T is son of Q Drawing diagram for ‘W + Z ÷ P ÷ R × T –Q’ according to the given instructions,
W is the mother-in-law to Q. Hence, “mother-in-law” is the correct answer.