Figure 12-14(for the Following Questions)

  Figure 12-14(for the following questions)
The accompanying graph above clearly shows that ____.

A) Type I Cepheid variables are always brighter than Type II Cepheids
B) Type II Cepheid variables always have shorter pulsation periods than Type I Cepheids
C) Type I Cepheids are always more distant than Type II Cepheids
D) RR Lyrae stars can have longer pulsation periods than Cepheid variables
E) RR Lyrae stars are always dimmer than Cepheid variables.