An ylide is a molecule that can be described as a:

a. carbocation bound to a carbon radical.
b. carbocation bound to a positively charged heteroatom.
c. carbanion bound to a positively charged heteroatom.
d. carbanion bound to a negatively charged heteroatom.
e. carbocation bound to a diazonium ion.

Option c. carbanion bound to a positively charged heteroatom.

Explanation:

A ylide is a molecule containing a negatively charged usually a carbnion atom directly bonded to a positively charged heteroatom in which both atom have complete octet congratulations.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.