Question

read this excerpt from the text and one from \the guardian,\ a british newspaper. which two details does the second excerpt help explain about the first? a how to prevent showerheads from getting slimy b how many different cold viruses there are c how a microbe in some showerheads may be harmful d the scientific name for showerhead gunk e the best way to see microbes in showerheads dunn and his team asked people from across the u.s. and europe to send in swabs from their shower heads. and within the biofilm-\a fancy word for the gunk\ that builds up inside them-they discovered a pathogen, nontuberculous mycobacteria (ntm), that is linked to lung disease in people with weak immune systems.

Explanation:

Excerpt 1 mentions a pathogen (NTM) in shower - head biofilm linked to lung disease in people with weak immune systems. Option C explains how a microbe in some showerheads may be harmful which is related to the pathogen mentioned. Option D gives the scientific name for shower - head gunk (biofilm), which is relevant as it is the environment where the harmful microbe is found.

Answer:

C. how a microbe in some showerheads may be harmful
D. the scientific name for showerhead gunk