The rare collections of artwork or of antiques are examples of:

Speciality products

The correct answer is Option (4) → Speciality products

Speciality Products: Speciality products are those consumer goods which have certain special features because of which people make special efforts in their purchase. These products are such, which have reached a brand loyalty of the highest order, with a significant number of buyers. The buyers are willing to spend a lot of time and efforts on the purchase of such products. For example, if there is a rare collection of artwork or of antiques, some people may be willing to spend a lot of shopping effort and travel long distance to buy such products. In our day-to-day life, we see people going to a particular hair-cutting saloon or restaurant, or a tailor. The demand for these goods is relatively inelastic, i.e., even if the price is increased, the demand does not come down.