Answer: Seeking to prove the bank is charging illegal fees to customers
Explanation: Hacktivist is defined as "a person who gains unauthorized access to computer files or networks in order to further social or political ends"
A hacker use skills to access the computer system of a well-known bank by seeking to prove the bank is charging illegal fees to customers.
A hacker refers to a person who can illegally access any information or computer systems without seeking any permission.
Hackers use their skills to access the computer systems of a well-known bank by seeking that the bank is charging illegal fees to customers.
Therefore, C is the correct option.
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