B lack of safety equipment
3. PRESUMPTUOUS.
Being interactive is definitely something a person would look for in a physician, because being interactive helps to reach out the person looking for help. Being courteous is being polite, and being polite and nice is a must. Empathetic means being able to reach out and relate to a personal thing, to be able to understand on a deep, emotional level, and that's definitely a valuable trait in physicians.
However, being presumptuous is being considered a know-it-all, jumping to conclusions and crossing the limits, and this definitely isn't a desirable quality in physicians.
Indeed, C and B both are correct, however, A is also correct as your circulatory system will be mostly affected due to lower oxygen levels. Due to these, there will also be less oxygen which can be caried around in your bloodstream.
