To test computer security and conduct encryption research, Tech Solutions Inc. circumvents the encryption software and other technological antipiracy protection of United Business Corporation's software. Under the Digital Millennium Copyright Act, this is

Select one:

a$.$ a violation of copyright law.

b$.$ prohibited but not a violation of copyright law.

C$.$ a "fair use" exception to the provisions of the act.

d$.$ permitted for reconsideration every three years.

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