Persons with abstemious habits can adjust themselves in any social set up.

Answer: Option C

Rustic : relating to the countryside; rural.
Lavish : sumptuously rich, elaborate, or luxurious.
Moderate : average in amount, intensity, quality, or degree.
Lucrative : producing a great deal of profit.
Abstemious : indulging only very moderately in something, especially food and drink.

Synonym of Abstemious is Moderate