Reading key parts of the passage:
- Private infrastructure: Investors fund it only if demand seems likely to yield profit via user fees.
- Example: A toll road project failed to get financing — not a failure of the model, but a virtue of the model, because it filtered out an unviable project.
- The passage overall supports private financing as a mechanism that avoids bad investments.
Now analyzing answer choices:
A. Private developers who financed the bridge would rely on governmental authorities → Not supported; the passage never suggests a fallback to government.
B. User fees would be decreased to attract more traffic → Makes no sense if the problem is excess traffic.
C. Profits would help finance more infrastructure → This was true in the general case, but in this scenario, the bridge already failed to meet demand over time. That likely implies additional infrastructure is needed now, not just reinvestment.
D. Success jeopardized by public dissatisfaction → Not discussed in the passage.
E. Governmental authorities would be reluctant to rely on private contractors to develop a new bridge → ✅ Makes sense in this context.
You have to understand in letter E that the bridge FAILED to meet demand to be profitable, meaning that it couldn ́t reach the demand of traffic needed to be profitable.
If a privately financed bridge eventually fails to meet demand (even if initially profitable), it may appear to public officials that private solutions are unreliable for long-term planning. That could cause reluctance to trust private developers with future projects — a plausible outcome consistent with choice E.