Answer:
Option c) mass
Step-by-step explanation:
With the increase in energy in energy of an object there will be an increase in its mass.
Also from Einstein's mass-energy equivalence,
![E = mc^(2)](https://img.qammunity.org/2020/formulas/physics/college/ikzwrs769ljub9l823ynebp5ocbrj2anoo.png)
where
m = mass of the object
c = speed of the object (usually speed of light or close to it)
which states that energy and mass are inter convertible.
From which it can be concluded that if an object acquires additional energy, it also acquires additional mass.