The correct statement is: O It will not affect personal health, but community health will worsen.
The presence of harmful bacteria in a community's drinking water source can lead to widespread health issues among individuals in the community, as contaminated water can cause illnesses. Therefore, both personal and community health will likely be negatively affected. However, if only one of the two choices provided must be selected, the first choice reflects a misunderstanding, as the contamination will indeed affect both personal and community health negatively.