Final answer:
In the context of a Bash shell script, (( $i + 1)) means that 1 will be added to the variable i.
Step-by-step explanation:
The expression (( $i + 1)) typically appears in the context of shell scripting, such as in a Bash shell script. It is an arithmetic expansion that increments the value of the variable i by 1. The correct answer to what this expression means is A) 1 will be added to the i variable. This is because when this expression is evaluated, the shell will calculate the value of i plus 1, and then either return it or assign it to another variable depending on the context in which it is used.