The trap in this question: students see "construction loans are obtained more than a year in advance" and think that's a complete reason. But it's not.
If forecasts are available in advance, why can't builders apply for larger loans when they learn about predicted mild winters? The first reason alone doesn't explain the problem.
The correct answer provides the missing piece: if forecasts are frequently wrong, builders won't rely on them when applying for loans more than a year ahead. That's what completes the logic.
Choices A and B fail because they don't address why advance loan timing creates an issue with forecasting. Choice C can only be correct if you bring in an assumption about its impact. Choice E actually suggests construction should increase even more.
The video solution breaks down this pattern in detail, showing how to identify when a given reason is incomplete and what the blank must provide to complete it.
Check this video solution for detailed analysis with
error log guidance: