Which concept refers to the tension among roles connected to a single status?

answer; the government can clearly justify the restriction;

answer; /// the need to make choices because economic wants exceed economic means;

answer; assisted marriages;

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants