Answer:
Options a and e are units which are C and T.
While options b, c ,d and f are variables or quantities.
Step-by-step explanation:
The units are the signs or representation of a standard amount of an physical quantity like meter for length.
Here C and T are units because they are not in cursive form.
C is unit of charge Coulomb while T is Tesla the unit of magnetic field strength.
Variables are written in italics or cursive form. As:
- c = any constant.
- C = curie constant.
- T= Temperature.
- t = Time.