AWS Certified Solutions Architect - Professional (#93)

A user is running a critical batch process which runs for 1 hour and 50 mins every day at a fixed time. Which of the below mentioned options is the right instance type and costing model in this case if the user performs the same task for the whole year?

Instance store backed instance with spot instance pricing.
EBS backed instance with standard reserved upfront instance pricing.
EBS backed scheduled reserved instance with partial instance pricing.
EBS backed instance with on-demand instance pricing.