What event finally convinced france to recognize american independence and enter the war against the british?

The correct option is C.

Gregor Mendel was the scientist who discovered the fundamental law of inheritance through his study on pea plants. He discovered that genes occur in pairs and they are transferred from the parents to the offspring as distinct units. In the offspring, these genes can be recessive or dominant. The recessive genes can only show if an individual has two copies of it while a dominant gene always show even if an individual has only one copy of it.