A field, or a combination of fields, that has a unique value is a:

If the system cannot find an activity to handle an Intent’s action, then method startActivity throws an Activity-NotFound-Exception. You can prevent this exception from happening by first using Intent method ________ to determine whether there is an Activity to handle the Intent.

a. findActivity b. findActivityForIntent c. resolveActivity d. resolveActivityForIntent

The If/Else decision structure uses a ___________________ condition to determine which set of instructions to execute.

Fill in the blank(s) with the appropriate word(s).