Answer:
The correct answer is option b.
Step-by-step explanation:
To calculate density of a substance, we use the equation:
We are given:
Mass of an object = 10 g
Volume of an object = 5 mL
Density of an object = d
Putting values in above equation, we get:

2 g/mL is the density of an object that has a mass of 10 g and a volume of 5 mL.