$182\mathrm{.}25$ points

Which of the following would most likely be ruled unconstitutional by the Supreme Court under the precedent set in Engel v$.$ Vitale $(1962)?$

Parents sending children to religious schools instead of to public schools.

Public$-$school teachers beginning each day by leading students in prayer.

Local religious leaders giving non$-$denominational blessings before city council meetings.

A student$-$led prayer group meeting on a college campus.