The correct answer is option 'B' - exemplary damages.

Explanation:
In a breach of promise to marry, exemplary damages may be awarded. Let's understand what this means and why it is the correct answer.

1. Breach of Promise to Marry:
A breach of promise to marry occurs when one party fails to fulfill their promise to marry the other party. This can happen when one party backs out of the marriage agreement without a valid reason. In such cases, the innocent party may suffer emotional distress, reputation damage, and financial loss.

2. Damages in Breach of Promise to Marry:
Damages are a legal remedy awarded to the innocent party to compensate for any harm or loss suffered due to the breach of promise to marry. There are different types of damages that can be awarded in such cases.

- No Damages: In some jurisdictions, no damages may be awarded for a breach of promise to marry. This means that the innocent party will not receive any compensation for the breach.

- Special Damages: Special damages are awarded to compensate for specific financial losses incurred as a result of the breach. These can include expenses related to preparations for the wedding, such as deposits paid for a venue or catering services.

- Nominal Damages: Nominal damages are a small amount of money awarded to acknowledge the breach of promise. They are usually symbolic and do not aim to compensate for any actual loss or harm suffered.

3. Exemplary Damages:
Exemplary damages, also known as punitive damages, are awarded in addition to compensatory damages. They are intended to punish the party responsible for the breach and deter others from engaging in similar behavior in the future. Exemplary damages are typically higher than compensatory damages and are awarded in cases where the defendant's conduct is deemed particularly egregious or malicious.

In the context of a breach of promise to marry, exemplary damages may be awarded if the defendant's actions are found to be exceptionally wrongful or malicious. These damages serve as a deterrent and send a message that such behavior will not be tolerated.

In conclusion, in a breach of promise to marry, exemplary damages may be awarded to punish the party responsible for the breach and deter others from similar conduct in the future.