Read the following paragraph and determine if the hypothesis is true:

"Maji Desu ka Ska!" (まじですかスカ! , Maji Desu ka Suka! , "Seriously, Ska!?") is the 45th single of the Japanese group Morning Musume, released on April 6, 2011 on the Zetima record label. The single sold 33,698 copies in its first week, charting at #5 on the weekly Oricon singles charts and peaking at #7 on the Japan Billboard Hot 100.

Pick your answer from:
 + Yes.
 + It's impossible to say.
 + No.
Hypothesis: Morning Musume's 45th single was their most popular



It's impossible to say