Answer:
The correct answer is B. Hot Spring. I just took this on Edge and got it correct.
D. Lysogenic cycle. In this cycle, viral DNA is inserted into the host cell's DNA. It divides with mitosis, soon creating many infected host cells. Once the lytic cycle is triggered (usually from external factors), the viral DNA is transcribed/translated into viruses.
I think it’s because the bacteria has evolved and become immune to the antibiotics.
The single type of bacteria is not adequate to make any conclusions.