Question

A beverage contains 3% alcohol which means that

Answer 1

 That contains ethanol, a type of alcoholproduced by fermentation of grains, fruits, or other sources of sugar. Drinking alcohol plays an important social role in many cultures. Most countries have laws regulating the production, sale, and consumption of alcoholic beverages Some countries ban such activities entirely, but alcoholic drinks are legal in most parts of the world.

Answer 2

The beverage is probably beer

A beer (Standard) contains 3-4% ABV for a standard volume of 300 ml to 400ml

For,

the record a strong beer contains 8-11% of alcohol

The ABV % gradually increases from beer to wine, gin rum , tequila, and vodka

For, the question above the beverage is probably standard beer

Alcohol is also sometimes used in various chocolates and cooking techniques which may contain some amount of alcohol which will be eventually not equal to even 1%