For this question, refer back to the video, "The Most Important Video You Will Ever See" by Professor Al Bartlett. Professor Barlett talks a lot about the doubling time. In the early days of the Covid-19 pandemic, the number of infected individuals was doubling every three days. Given a doubling time of three days and assuming that 1,000 individuals were initially infected by the virus, how many people would be infected by the virus at the end of 30 days? Select one: O a. 1,024,000 b. 2,048,000 c. 3,000 d. 512,000 e. 1024