Select the option that expresses the given sentence in reported speech.

Ross said to Rachel, “We were on a break”.

Ross told Rachel that they had been on a break.

The most appropriate option to express the given sentence in reported speech is:

Ross told Rachel that they had been on a break.

The other options are incorrect:

• Ross told Rachel that they used to be on a break. - This is incorrect because the verb "used to" is used to express a habit or routine in the past, but the original sentence is about a specific event in the past.
• Ross told Rachel that they were on break. - This is incorrect because the present tense verb "were" is used, but the original sentence is in the past tense.
• Ross told Rachel that they have been on a break. - This is incorrect because the present perfect tense verb "have been" is used, but the original sentence is in the simple past tense.