Which guaranteed students with disabilities a “free appropriate public education” in an environment that was not restrictive?
the social security act of 1935
the smith-sears veterans rehabilitation act
the individuals with disabilities education act
the president’s committee on mental disabilities

The Individuals with Disabilities Education Act guaranteed students with disabilities. Thus option C is the right anwer.

Explanation:

When the child is proved to be disabled, he is entitled to receive special education under Individual Disabilities Education Act. This law allows the children with disabilities to get free public education in a free environment which does not restrict the rights and freedom of the disabled child in getting educated.

It states that all children who were proved of disability can avail free service of special education. This law ensures that children with proved disabilities are capable of independent living in future. This law also comprises various provisions which shield the interests of the care takers or the guardian of disabled children.  

This law also evaluates the effectiveness of the organization which provides special education to such children. This law also empowers states, federal agencies and schools to take necessary action which safeguards and improves the abilities of the disabled children.

i believe the answer is a