Does red hat subscription also include redhat cluster support ?

AS PER THE ATTACHED PICTURE REDHAT Standard Subscription COST IS $799 AND Premium Subscription COST IS $1,299.
I HAVE 2 QUESTIONS IN THE RESPONSE OF THIS:

1-) DOES BOTH SUPPORT SUBSCRIPTIONS ALSO INCLUDE REDHAT CLUSTER SUPPORT ?
2-) WHAT IS THE DIFFERENCE BETWEEN Standard Subscription AND Premium Subscription