Answer:
The correct option is d isothermal
Explanation:
Step 1: Data given
An adiabatic process is a process in which no heat is gained or lost by the system.
A constant- volume process, also called an isochoric process is a process in which the volume is held constant, meaning that the work done by the system will be zero.
An Isobaric process is a thermodynamic process taking place at constant pressure
An isothermal process is a thermodynamic process, in which the temperature of the system remains constant
Step 2: This situation
The container is slowly compressed, while the temperature is kept constant.
This is an isothermal process.
The correct option is d isothermal