Answer : Textbook, Track shoes and Basketball
Explanation :
The objects can be of three types :
- Transparent objects
- Translucent objects.
- Opaque objects
The objects that do not allow to pas through it are called opaque objects.
Out of given options the objects that are opaque are
1. Textbook
2. Track shoes
3. Basketball
Hence, the correct options are (a), (b) and (d)
