I applied to a PhD program, and after all the interviews I got a firm offer for a fellowship let's call it PhD A, that I have to give an answer to before a deadline (next week), since they have
Now the lab in which I did my master's thesis, and in which I have been working since 6 months applied for a grant to finance a PhD student (me) but won't have an answer before a May. Let's call this PhD B.
Now my problem is that I would prefer staying in the lab I am at for PhD B, but, even though it might be small, there is always a chance that it wont get the grant, so if I say no to PhD A I would be left with nothing.
And on the other hand, if I accept the fellowship offer for PhD A and my lab gets the grant, I would prefer doing PhD B.
The real problem is this deadline, because the PhD A wouldn't start before October, and so if I also get an offer for PhD B after having accepted offer A, I would prefer not to burn any bridges by just leaving after having accepted.
So my question is what do you think can be done in a situation like this?