Correct Answer: Inexpensive

Solution : The third option is the correct choice.

The adjective s umptuous means to be splendid and expensive-looking, whereas inexpensive means costing a relatively small amount of money, affordable, making it the right antonym for the word "sumptuous".

The meanings of the other options are as follows:

• Unremitting : Continual and persistent, often without interruption or relaxation
• Lucrative : Producing a significant amount of profit or financial gain.
• Delectable : Extremely pleasing to the taste, being delicious.