Which one is the best resolution for the following error?

"A valid signing identity matching this profile could not be found in your keychain"

Best way to show multiple lines text in the UILabel?

Which correctly describes when the - (void)viewDidUnload method is called?

Which is not a valid MKAnnotationView property?

What does a '__block' type specifier mean?

Which is not a valid MPVolumeView method?

Locking all connections before editing the Nib files can be achieved by using:

Which debugging tasks are provided by Xcode to find and squash bugs in your code?

Which programmatically avoids auto-lock?

Which are true regarding the usage of NSinteger and int in iOS?

What would be examples of troubleshooting steps to do, when Xcode displays a launching remote program error?