Recent research suggests that stress interferes with human immune system functioning by universal. Thus, the option (c) is correct.
What is research?
The term “research” refers to generating and creating new ideas with the help of previous studies and phenomena. Using primary valid sources that have already been published on a subject that is related.
Scientists are examining how universal factors such as stress affect how well the human immune system functions. This makes heart attacks and strokes more likely.
As a result, research suggests that stress interferes to the human immune system functioning by universal. Therefore, option (c) is correct.
Learn more about on research, here:
https://brainly.com/question/18723483
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Your question is incomplete, but most probably the full question was.
A) less likely to impact residents of rural areas or non-industrialized countries.
B) more likely to impact people living in urban areas and developed countries.
C) universal.
D) Both B and C are correct.
