Read the following premise and answer if the hypothesis is true.
Harold E. Ennes was a broadcasting pioneer who authored many textbooks for broadcast and broadcast-related communications training and was a member of the Indianapolis chapter of the Society of Broadcast Engineers. He was a member of SBE's national Certification Committee and made many contributions to the early development of the SBE Certification Program.
Hypothesis: Harold E. Ennes was a popular person . Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say. The premise only mentions Harold E. Ennes' professional accomplishments and memberships, it does not provide