Which pillar of Information security is affected when Abdulla was applying for Online Master’s Degree through college admission web site, and the admissions websites crashed? And he couldn’t submit...

Which pillar of Information security is affected when Abdulla was applying for Online Master’s Degree through college admission web site, and the admissions websites crashed? And he couldn’t submit his application on schedule. a. Integrity b. Confidentiality c. None of the above d. Availability