Answer:
A) consequently
Step-by-step explanation:
Consequently is a sentence connector that shows cause an effect. That means that some action or actions lead to a determinate result. This word is defined as "as a result".
In this case, the negative actions of Gabe lead to a negative consequence.
The final sentence is:
Gabe had skipped forty-two classes and gotten suspended three times for fighting, consequently Gabe was not allowed to walk across the stage at graduation in his gown.