Compliance O a accidental inhalation of foreign material into the lungs
O b. space between the lungs
O c. substance that reduces surface tension
O d. a measure of how easily the lungs expand
O e. expectoration

d

Explanation:

a measure of how easily the lungs expand

the correct answer is 4 (giveaways to the public)

something that is given away or gave out for free. an occasion at which things are given away to free. something that is evident or obvious; something that uncovers a mystery.

it could be be in a form of a lucky draw as well. these the company events gather more audience for their pr and it also increases their ratings as well. this is a way to attract more customers towards themselves.

a problem could be dealing witj emotional stress..all of these factors contribute to emotional stress.