Which of the following options are proper use cases of the AWS Simple Monthly Calculator?

i$.$ Project monthly cost of a new or existing AWS service.

ii$.$ Calculate the total cost of labour required for cloud migration.

iii. Determine anomalous billing events in in$-$service consumption.

iv$.$ Investigate cost savings potential.

i$,$ ii$,$ and iii

iii, iv$,$ and i

i only

i and iv