ANSWER: LOG PHASE/POINT
EXPLANATION: The log phase of logistic population growth witness the fastest growth rate. It's the phase where there is rapid growth exploiting the high resources supplied.
Moreso, the population continues to grow rapidly approaching the carrying capacity (i.e the highest population size that the resources available in the ecosystem can sustain). On getting to the carrying capacity the ecosystem can withstand, the growth rate adjusts and move inline with the carrying capacity. It's also referred as exponential phase.