Implementing Cisco IP Switched Networks (SWITCH v2-0) (#81)

Refer to the exhibit.

f1/0 and f1/1 have the same end-to-end path cost to the designated bridge. Which action is needed to modify the Layer 2 spanning-tree network so that traffic for PC1 VLAN from switch SW3 uses switchport f1/1 as a primary port?

Modify the spanning-tree port-priority on SW1 f1/1 to 0 and f1/0 to 16.
Modify the spanning-tree port-priority on SW1 f1/1 to 16 and f1/0 to 0.
Modify the spanning-tree port-priority on SW2 f1/1 to 0 and f1/0 to 16.
Modify the spanning-tree port-priority on SW2 f1/1 to 16 and f1/0 to 0.