The correct answer is (b) soda glass. Soda glass is the most common type of glass, accounting for over 90% of all glass produced. It is made from a mixture of silica sand, soda ash, and lime. Soda glass is relatively inexpensive and easy to work with, making it ideal for a variety of applications, including windows, bottles, and containers.
Pyrex glass is a type of borosilicate glass that is resistant to thermal shock. It is often used for cookware and laboratory equipment.
Optical glass is a type of glass that is used in optical instruments, such as lenses and prisms. It is made from a mixture of silica, soda ash, lime, and other materials that give it specific optical properties.
Hard glass is a type of glass that is resistant to scratching and abrasion. It is often used for jewelry and other decorative items.