In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Most of the valley had been (1)_________ over the ages by the river waters, (2)_________ rainfall, and fierce winds. All except for one giant monolith, a (3)_________ tower-like mountain of a single rock. It stood at a proud (4)_________ of eight hundred and fifty metres from the valley floor, towering well above the (5)_________ shoulders.

Select the most appropriate option to fill in blank number 5.