You are running Active Directory within a forest. Two workstations in separate trees need to share a Distributed Filesystem folder. What changes to the trust relationship(s) must be made for this folder to be shared between workstations in different trees?

a. You must create two separate one-way trusts between the trees.

b. You must create two separate one-way trusts between the workstations.

c. You must manually create a two-way trust between the trees.

d. All computers in the forest automatically have two-way trust relationships, so you don't need to change any trust relationships.