Question

Question was provided via image upload.

Explanation:

The question is about antibiotic resistance and microbial interactions, which falls under Biology (a subfield of Natural Science). The option about having different antibiotic susceptibilities due to gene expression change (the third option, likely C if options were labeled A - D) relates to how microbes can become resistant via gene - related changes in susceptibility.

Answer:

C. susceptible to new antibiotics due to a change in gene expression (assuming the third option is labeled C; adjust label based on actual option numbering)