Match the Column I (domains) with Column II (relation) and select the correct option from the codes given below.
| Column I | Column II |
| A. Mechanics | P. electric and magnetic fields |
| B. Electrodynamics | q. macroscopic equilibrium |
| C. Thermodynamics | r. Newton’s laws of motion |
Options:
(a) A-p B-q C-r
(b) A-r B-p C-q
(c) A-p B-r C-r
(d) A-q B-r C-p