Hector is investigating which parachute will stay in the air the longest. He plans on testing various materials for the canopy of a parachute. He will record the time taken for each parachute to drop The for each parachute will be of equal length. (SC 6 N.1.1)

21 just playing hshsjsjshsgdhdhdhhd

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

What do you need with it’s not a question your just stating what it says