Which of the following sentence has an adjective clause?

An adjective clause is used to describe or qualify the noun in the sentence.
Example: Raju is my friend who lives in Dhaka.
- In option 1) the second clause is the reason behind the action taken in the first clause. So, this sentence does not have any adjective clause.
- The second sentence is a compound sentence and here two clauses are joined with the help of a conjunction(and). Hence, option 2) has no adjective clause.
- The third sentence is a simple sentence and it does not have any subordinate clause. Hence, option 3) is not the answer.
- In option 4) the word 'chain' is described in the subordinate clause. So, it has an adjective clause. Hence, option 4) is the answer.