HELP.PLEASSSSEEE THIS IS DUE IN 10 MINUTES 
The Soviet Union’s reaction to the 1968 "Prague Spring" in Czechoslovakia was to:
 a
Withdraw Soviet troops from Eastern Europe
 b
Send Soviet troops and tanks to occupy Czechoslovakia
 c
Bring the matter to the attention of the United Nations
 d
Have a summit meeting with Western leaders
 e
Permit limited political and economic reforms in Czechoslovakia