I say A not sure tho but I did get a grade 5 in biology
Option 3; the other grams were realeased as a gas
<span>Muscle color is related to muscle specialization because it indicates whether muscles are used more for aerobic or anaerobic metabolism. Aerobically respiring muscles that do work over a long period of time have more red oxidative fibers, while anaerobically respiring muscles that do work in bursts have more white glycolitic fibers.</span>
A little more context would be helpful, but in general Gram Staining helps us to decipher between two major groups of bacteria (Gram positive and Gram Negative). This is helpful because different antibiotics must be used to treat infections from the different types of bacteria, so it will help them to properly medicate Anna.
Henry Faulds and Galton are cousins which both helped each other like Faulds wrote a book about fingerprints which helped Galton out a lot.
Faulds was also the Father of Fingerprinting.
hope i helped ~Zuzu :)