Over the last 60 years, the climate of southern California has become more dry and hot leading to a large increase in the number of wildfires and long droughts. Some plants like Baccharis pilularis are better adapted to these changes due to being fire resistant, and the population of Baccharis pilularis has increased over this time. What is the MOST likely limiting factor that might slow down the growth of Baccharis piluaris?

A
lack of water
B
lack of nutrition in the soil
C
increase in predation
D
increase in competition