Which of the Following Research Questions Reflects an Inductive Approach

Which of the following research questions reflects an inductive approach to scientific inquiry?

A) Is there a difference in infection rates among patients with neutropenia who eat from dishes cleaned with automatic dishwashers as compared with patients with neutropenia who eat from dishes that are hand washed?
B) Do older adults residing in assisted-living settings have more social interaction than do older adults residing in their own homes?
C) What is the relationship between self-esteem and loneliness in recently widowed women over 60?
D) What is the experience of parents when their child is born more than 10 weeks preterm?