In Unani medicine, Asbab-e-Nabz refers to the factors influencing the pulse.
Arteries are not considered an Asbab-e-Muqawwima; rather, they are the medium through which the pulse is felt.
Physical activity and Repose are correctly classified under Asbab-e-Ghair Muqawwima Lazima — factors that naturally affect the pulse.
Sleep and Awakening are part of Asbab-e-Ghair Muqawwima Mughayyara — the modifiable external factors influencing the pulse.
Fever is a modifiable condition but is not categorized under Lazima.
Hence, only B and C are correct.