Which is a source of tension in the story?

A. The question of how Mrs. Peters's child died

B. The question of how Mrs. Wright made her quilt

C. The question of whether Mrs. Wright is guilty

D. The question of who was killed yesterday evening

At midnight thomas edison opened the door and continued his work, but to his surprise it was so late that he had to get some rest. but with his mind racing and his mind at sake he continued working. hours and hours went untill he got it. he had invented the worlds first lightbulb!

Basketball is the subject.