Complex sentence: The school was founded in 1898 by the Society of Jesus (Jesuits) and provides instruction at the preschool, primary and secondary levels, it is a selective school that excels in academics and athletics.
Split into simpler sentences: The school was founded in 1898 by the Society of Jesus (Jesuits) and provides instruction at the preschool, primary, and secondary levels. It is a selective school that excels in academics and athletics.