Four students wrote sequences in math class. Angela negative 6 comma negative 9 comma negative 12 comma negative 15 comma dot dot dot Bradley negative 2 comma negative 6 comma negative 12 comma negative 24 comma dot dot dot Carter negative 1 comma negative 3 comma negative 9 comma negative 27 comma dot dot dot Dominique negative 1 comma negative 3 comma negative 9 comma negative 81 comma dot dot dot Which student wrote a geometric sequence?