According to the Sacks, Schegloff, and Jefferson (1974) Model of Conversation

According to the Sacks, Schegloff, and Jefferson (1974) model of conversation, the primary rule is that:

A) * the current speaker is allowed to select the next speaker
B) the first person to speak up during a silence gains the floor
C) the current speaker may continue, although is not obligated to do so
D) the speaker who yields the least number of turns is perceived to be the conversational leader