MOTHER→ONHURF uses a +1 shift for each letter: M+1=N, O+1=P, T+1=U, H+1=I, E+1=F, R+1=S. Wait, that gives NPUIFS, not ONHURF. Let me verify: M+1=O is +2, O+1=P is not N. The actual pattern is alternating: M+2=O, O-1=N, T+1=U, H+1=I, E+1=F, R+1=S would give ONUIFS. The correct pattern appears to be: first letter +2, then alternating -1, +1, +1, +1, +1. For ANSWER using similar mixed pattern: A-0=N doesn't work. The correct pattern is: M+2=O, O-1=N, T+1=U, H+1=I, E+1=F, R-1=Q gives ONUIFQ. The actual transformation is: position 1:+2, position 2:-1, position 3:+1, position 4:+1, position 5:+1, position 6:-1. For ANSWER: A+2=C would give... but option B is NBWTRF which suggests -1,+1,+3,+2,-1,+1. The mixed pattern is complex but option B matches.