Let us try to explain each option one by one.
a) a street has a width of 5 meters
This is quite reasonable as the width of street can be approximately 5 meters.
b. a cat has a mass of 5 grams
The mass of a newborn cat is 99 grams. So no cat can weigh 5 grams, as its too small.
c.a swimming pool has a capacity of 5 liters
5 liters is too small quantity for a small sized swimming pool too.
d. a beetle has a mass of 5 kilograms
A beetle is a small creature measuring mostly in grams.
So answer is option a. a street has a width of 5 meters