Answer:
b. personal
Explanation:
Most people converse to friends and family members in the personal spatial zone. There are four main types of spatial zones: intimate (close friends and family, lovers, children), personal (friends, family), social (strangers, newly formed groups, new acquaintances) and public (speeches, lectures and theatre). For most people, respecting personal space is important and violating this can lead to awkwardness or discomfort.
