Answer:
Step-by-step explanation:
VLSM is Variable Fixed Length Subnet Mask which creates subnets with varying sizes with a variable number of hosts.
Arrange the different subnets with descending number of hosts required. So the first subnet will be for Marketing and the second will be for Research. The second subnet will have the second higher IP available which is 199.199.10.0/26. It has 64 IP addresses that can be assigned to 13 hosts required by Research.