Explanation:

Certainly! Let me explain each option:

- Option 1: is rendered voidable

A contract is voidable when one party can choose to either affirm or reject it. Destruction of the subject matter does not generally make a contract voidable.

- Option 2: becomes void

When the subject matter is destroyed without fault of either party, the contract often becomes void, as it's impossible to fulfill.

- Option 3: continues to be valid

The contract cannot continue to be valid if the essential subject matter is destroyed.

- Option 4: becomes unlawful

The destruction of the subject matter does not make the contract unlawful; it may just become impossible to perform.

Correct Answer: Option 2: becomes void