In Texas, a home equity loan cannot exceed what percentage of the home's fair market value?

A is incorrect because 70% is below the actual Texas limit. While some states have lower limits, Texas has established 80% as the maximum allowable loan amount for home equity financing.

C is incorrect because 90% exceeds Texas's strict home equity loan limit. While conventional mortgages might allow higher LTV ratios, Texas home equity loans have this specific 80% limitation.

D is incorrect because 100% financing is never allowed for home equity loans in Texas. This would eliminate all homeowner equity, defeating the purpose of a home equity loan and violating state constitutional provisions.