What can you infer about the relationship between PlantA and PlantB when they are growing in the same habitat? In other words, what is a reason that could explain why one of the plants dies out completely?

Icant be totally sure but i would say with confidence that it is example #1 about cells.

The answer is b, as with an inference you make a statement with no evidence

This  focuses on  the entrepreneurial leadership of these  growth  firms.   governmentministers can play a critical  role  in  fostering  enterprise and innovation. their  role  is to direct thegovernment  departments and agencies to  focus  on the problem and develop effective policies.