According to the Act, which are the categories of food, which does not meet to the specified standards?

Correct option is A

Sub-standard food is explicitly defined under Section 3(zx) of the Act:

“‘sub-standard’, an article of food shall be deemed to be sub-standard if it does not meet the specified standards but not so as to render the article of food unsafe.”

Key Characteristics:

The food does not meet specified quality standards.

However, it is not unsafe for consumption.

This implies that while it may not be ideal or optimal in terms of quality, it doesn't pose a health risk.