Which of the Following Has NOT Been Found True in Regard

Which of the following has NOT been found true in regard to stress and health?

A) Pregnancy complications are more likely when household stress levels are high.
B) High stress is related to increased risk of stroke, angina or chest pain.
C) Poor health outcomes are unrelated to household stress levels.
D) High household stress correlates with increased streptococcal illness.
E) Chronic stress in conditions of poverty can weaken working memory, leading to lower marks in school.