Part $2$ : Which of the following is an element cloud app designers may have to consider incorporat$-$ing in software for the cloud that may not have been as important in the traditional environment and why? Why other options are not suitable? Explain in brief.

a$.$ Identity and access management $($IAM$)$ capability

b$.$ Distributed denial of service $($DDoS$)$ resistance

c$.$ Encryption for data at rest and in motion

d$.$ Field validation