In وَقَفَ الْحَارِسُ قُدَّامَ الْبَابِ, which word functions as the adverb of place?

Maf'ul Fih: Adverbs of Place

• الْحَارِسُ
• قُدَّامَ
• وَقَفَ
• الْبَابِ