Four students wrote sequences during math class. Andre negative 3 fourths comma 3 eighths comma negative 3 over 16 comma negative 3 over 32 comma dot dot dot Brenda 3 fourths comma negative 3 eighths comma 3 over 16 comma 3 over 32 comma dot dot dot Camille 3 fourths comma 3 eighths comma negative 3 over 16 comma negative 3 over 32 comma dot dot dot Doug 3 fourths comma negative 3 eighths comma 3 over 16 comma negative 3 over 32 comma dot dot dot Which student wrote a geometric sequence?