Def Leppard are an English rock band formed in 1977 in Sheffield as part of the new wave of British heavy metal movement. The following is a complete list of all official members, session musicians, featured artists, touring musicians, and live guests of Def Leppard's career

Choose your answer: based on the paragraph above can we conclude that "Def Leppard was not the original band title"?

Available options:
A). Yes;
B). It's impossible to say;
C). No;
I think the answer is
B).