Sentence1: Gina and her friend Tami were walking around the playground. Sentence2: They talked for 5 minutes. Sentence3: Now they were out of thing to discuss. Sentence4: Gina racked her brain but could find nothing to say. 
 (A) Tami wished Gina would shut up, but she just kept talking. (B) They just walked comfortably in silence for a while.
B