Volleyball & skiing 🏐⛷ (Detecting Reasoning Errors)

A: A
B: B
C: C
D: D

Hint:
Given:
Volleyball = Skiing
Skiing = Cycling
So,
Volleyball = Cycling = Skiing

Given:
Skiing ≠ Gymnastic
So,
Volleyball ≠ Gymnastic
Cycling ≠ Gymnastic
Skiing ≠ Gymnastic