According to Penal Law 35.20, under what circumstance can a person use physical force to defend their premises?

The correct answer focuses on the principle that individuals may use physical force to prevent damage to their premises' security. Penal Law 35.20 emphasizes the right to protect one's property, particularly when it is at risk of being harmed or is under threat. This includes situations where the integrity and security of the premises are compromised, which justifies the use of reasonable physical force.

In this context, the law acknowledges the need for individuals to defend their homes and properties against any unlawful incursions or actions that could lead to damage or loss. A focus on premises' security aligns with the broader legal framework that seeks to balance an individual's right to protect their property with ensuring public safety and reasonable conduct.

The other options do not align as well with the stipulated conditions under which the law allows the use of physical force in defense of premises. Using force when a weapon is involved or when personal property is being stolen might invoke different sections of the law addressing defense but not specifically under the premise of defending premises' security. Similarly, feeling threatened by a trespasser may lead to defensive actions, but without an imminent threat of damage, it does not clearly meet the criteria set forth in Penal Law 35.20 regarding the justification for using physical force.