Priority will be given based on stage of life cycle,

1) Assume that application is middle stage (I mean to say build is 3rd one
and still few more to come) and you are testing the application to accept it
(Smoke/sanity Testing) for further testing I would like to give the preference
as B, A, C Why I am giving last preference to C is when I am giving uncommon
string then the application is getting crash, but as of now we have alternative
and that is positive value, so with positive value we can work with the
application Next why A is given second preference “black berry” Its company
Name, not a simple title of application

And lastly why I am giving first preference to BI am not able to launch the
application in first attempt then it is a major issue, while accepting the build
(smoke/sanity testing) if you are not able to launch then definitely we will
reject the build.

2) Assume application is completed and ready for use, then also I will give
B, A, C Let me tell you in general way, Suppose you are a customer and
interested to purchase Blackberry mobile and if it is not launching in first
attempt, do you purchase that piece, no one will purchase, and coming second one
company Label, Company goodwill is linked to it, and with this mistakes goodwill
will be degraded so second preference, and coming to last one we have an
alternative and that is we can give positive values with which that particular
functionality will work Please correct me if I am wrong.