A User Has Created a VPC with Public and Private

Multiple Choice

A user has created a VPC with public and private subnets using the VPC Wizard. The VPC has CIDR 20.0.0.0/16. The private subnet uses CIDR 20.0.0.0/24. Which of the below mentioned entries are required in the main route table to allow the instances in VPC to communicate with each other?

A) Destination : 20.0.0.0/0 and Target : ALL
B) Destination : 20.0.0.0/16 and Target : Local
C) Destination : 20.0.0.0/24 and Target : Local
D) Destination : 20.0.0.0/16 and Target : ALL