Answer:
A - It will increase
Step-by-step explanation:
Take for instance,
The number of particles (10000) present initially is less in a per unit volume say in 1 mL.
The number of particles increases (20000) in the same volume 1mL .
So, the pressure will increase in the container since 10000 particles is present in a low volume of 0.5 mL now.
We know as volume decreases the pressure will increase as per Boyle’s law.