Final answer:
The equity justification for government intervention in education is ensuring equal access to educational resources for all.
Step-by-step explanation:
The equity justification for government intervention in education is A.
Ensuring equal access to educational resources for all.
By providing free public education, the government aims to ensure that every student has the opportunity to receive a quality education, regardless of their socio-economic background.
This helps to level the playing field and reduce educational inequalities.