re: Tough career scenario... which choice would you make?

How much do I believe in what job B is selling and the leadership there? Do I have dependents and would it be difficult to cover job B not working out? (i.e. do I have a spouse that earns a good wage to cover any time between jobs and/or could I find other employment options relatively quickly).

I think I would tend toward job B, but there's nuance to it.