Postsecondary education refers to:A.all education after high school.B.community college.C.technical school.D.high school.

Step 1: Understand the Concept

Postsecondary education encompasses any education pursued after the completion of high school (or its equivalent). This can include a variety of educational institutions and programs.

Step 2: Analyze Each Option

1. A. all education after high school - This option includes all forms of education that take place after obtaining a high school diploma, aligning with the definition of postsecondary education.
2. B. community college - Community colleges are a form of postsecondary education; however, this option is not comprehensive as it only represents one type of postsecondary institution.
3. C. technical school - Technical schools provide vocational training, which is indeed part of postsecondary education but again is not all-encompassing.
4. D. high school - This option explicitly refers to education prior to postsecondary level, so it does not fit the definition.

Step 3: Determine the Correct Answer

The most accurate answer is the one that fully represents postsecondary education without being limited to specific types of institutions.

Final Answer

A. all education after high school.