Why Was the Dry Cleaning Company Held to Be Liable

Multiple Choice

Why was the dry cleaning company held to be liable in Curtis v Chemical Cleaning & Dyeing Co [1951] 1 KB 805?

A) Because the contract so provided.
B) Because the exemption clause in the contract was illegal.
C) Because exemption clauses are not enforceable.
D) Because the purpose of the exemption clause in the contract was misrepresented by the shop assistant.