Henrietta Leavitt Worked Out the Period-Luminosity Relation for the Type

Henrietta Leavitt worked out the period-luminosity relation for the Type I (or classical) Cepheids found in the Small Magellanic Cloud. Later, Cepheids were discovered in globular clusters, and these were assumed to be Type I Cepheids, and the distances to these clusters were calculated accordingly. However, it was later discovered that these were dimmer Type II Cepheids. Refer to Figure 13-28 from the text. Did this require a recalculation of the distances to these Cepheids?

A) No. The distances were still correct.
B) Yes. For a given Cepheid period, the new distances were smaller than those originally calculated.
C) Yes. For a given Cepheid period, the new distances were larger than those originally calculated.
D) Yes. New distances had to be calculated, which could be larger or smaller than the original calculation.