I am presently in class 10th ....I want to prepare for SAT...Is it after 12th ?? or after 11th ?? How is subject chosen in that ??

Hi, SAT Reasoning Test (formerly Scholastic Aptitude Test and Scholastic Assessment Test) is a standardized test for college admissions in the United States. The SAT is owned, published, and developed by the College Board, a non-profit organization in the United States. It was formerly developed, pu