Step 1: Section 6 rule.
Section 6 of the Specific Relief Act provides that no person shall be dispossessed of immovable property except in accordance with law.
Step 2: Who can sue.
A tenant holding over (a tenant continuing possession after expiry of lease) can bring a suit to protect possession even against the landlord, until evicted by due process of law.
Step 3: Exclusion.
Trespassers, servants, or managers cannot sue under this section.
Step 4: Conclusion.
Hence, option (b) is correct.