to comply with the americans with disabilities act, public buildings had to build ramps. private buildings…

to comply with the americans with disabilities act, public buildings had to build ramps. private buildings had to build elevators. public buildings had to build stairs. private buildings had to install handrails.

to comply with the americans with disabilities act, public buildings had to build ramps. private buildings had to build elevators. public buildings had to build stairs. private buildings had to install handrails.

Answer

Brief Explanations:

El Acta de Estadounidenses con Discapacidades (Americans with Disabilities Act - ADA) exige que los edificios públicos incluyan accesos para personas con discapacidades, como rampas. Las otras opciones no son requisitos específicos del ADA en este contexto. Las rampas facilitan el acceso a personas con discapacidades que usan sillas de ruedas o tienen dificultades para subir escaleras.

Answer:

public buildings had to build ramps.