Passivity can harm relationships because those who are passive a. have open relationships with others b. tend to store up hurt feelings, leading to resentment c. typically have excessive self-esteem d. are free from self doubt and worry

The correct answer is option b. "Tend to store up hurt feelings, leading to resentment". Passivity is defined as acceptance of what happens, without active response or resistance. This is something that can harm relationships because a person that is passive does not express her or his feelings, as a result she or he tend to store up hurt feelings, leading to resentment.