Two candidate opportunities are compared purely on estimated build effort, and the cheaper one is selected. What is the flaw?

• AInvestment required includes everything after the build, such as support, enablement, channel changes and ongoing operations, so comparing on build cost alone favours whatever is cheapest to code and most expensive to run.
• BThere is no flaw, since delivering sooner is always better.
• CBuild estimates should be replaced by story point forecasts.
• DThe comparison should have used revenue potential alone.