Concept:A teacher who handles many different subjects must be able to do many things well.
Explanation:The teacher takes classes in English, Physics, Economics and Technical Drawing.
This shows the teacher can handle very different subjects without difficulty.
"Efficient" means doing work in a well-organised way, but it does not show a range of skills.
"Jovial" means cheerful, and "kind" means gentle and caring; both describe personality, not ability.
"Versatile" means able to adapt to many different functions or activities.
So the best word to complete the sentence is "versatile".
Answer:D. versatile