The Moody Blues - Question

Like I have said before (in a previous blog), this is a band my whole family likes. I have been able to listen to them quite a bit recently, due to my new job position because my boss is into the classics. Here is a song by The Moody Blues that I have been listening to lately (previous music video has been removed.  This is a different video of the same song).

Moody Blues - Question (1969)