Which amongst the four alternatives given below, is the most concise and clear?

The History of Modern Industry's performance, which is marginal at best, may be an indication of solvency problems that will occur in the future.

Modern industry's History of marginal performance may indicate solvency problems in the future.

The History of marginal performance of Modern Industry may indicate future solvency problems.

Modern Industry's History of performance, which is marginal at best, may indicate future solvency problems.