I believe the answer is D mainly based off the wording. The question says "Devices" And the only answer with devices involved would be D, Personal protective equipment.
Tributaries is a river or stream that flows into a larger river or lake so ur answer is A
Can you be a little more specific?
The haustra (singular haustrum) of the colon are the small pouches caused by sacculation (sac formation), which give the colon its segmented appearance. The teniae coli run the length of the colon. ... Haustral contractions are slow segmenting, uncoordinated movements that occur approximately every 25 minutes.
Hope that helps!
