A robot is equipped with a camera, a smoke detector, and a heat sensor$.$ It has been observed that $"$if somebody smokes then fire happens and if nobody smokes then fire does not happen". It was also observed that $"$if there is heat, then fire is possible". The agent's sensors have detected $"$no fire or smoke but some heat" in the surrounding environment.

From the options below, select the one$($s$)$ that indicates:

i$)$ an entailment the robot can possibly make, and

ii$)$ a statement that is not in the robot's knowledge base.

A$.$ Entailment: heat

Sentence not in the robot's KB: not fire vnot smoke

B$.$ Entailment: not smoke

Sentence not in the robot's KB: heat $=>$ fire

C$.$ Entailment: not smoke

Sentence not in the robot's KB: not heat vvnot fire

D$.$ Entailment: not heat

Sentence not in the robot's KB: heat $v$ fire