You have measured the water level of a reservoir at different times throughout an year. You need to find the minimum water level that the reservoir had in that year based on these measurements. To work this out which numerical methods would you need and which order would you need to apply them in? a. Numerical integration followed by solving an ODE. b. Curve fitting, followed by numerical integration. c. Solving an ODE followed by root-finding applied to the derivative of the resultant curve. d. Curve fitting followed by root-finding applied to the derivative of the fitted curve. e. Numerical integration followed by solving a system of linear equations. f. Root finding followed by numerical integration. g. Curve fitting, followed by solving an ODE. h. Solving a system of linear equations followed by solving an ODE