Using a combination of symmetric and asymmetric key encryption, Sofia Chiamaka sent a report to her home office in Bangalore, India. She received an email acknowledgement that her report had been received, but a few minutes later she received a second email that contained a different hash total than the one associated with her report. The most likely explanation for this result is that

Please provide your answer in the rich text box.

AThe public key had been compromised

BThe private key had been compromised

CThe symmetric encryption key had been compromised

DThe asymmetric encryption key had been compromised