Which of the following is a feature of public goods ?

The correct answer is Option (3) - Consumption of one person does not affect the consumption of another person.

Public goods exhibit non-excludability and non-rivalry. This means that once provided, individuals cannot be effectively excluded from using them, and one person's consumption of the good does not reduce the availability of the good for others. This characteristic distinguishes public goods from private goods, which are both excludable and rivalrous in consumption.