What are the four other main school speech cases, along with the rule articulated in each case? (Choose the correct combination)
a) Tinker v. Des Moines - Students have the right to free speech as long as it does not cause a substantial disruption.
b) Brown v. Board of Education - Segregation in public schools is unconstitutional.
c) New Jersey v. T.L.O. - School officials can search students if they have a reasonable suspicion.
d) Miranda v. Arizona - Suspects must be informed of their rights before being interrogated.