Answer:
A: synonymous
Step-by-step explanation:
The type of parallel construction represented in the verse 4 of Psalm 100 is synonymous parallelism, which is frequently used in the Psalms of the Bible. This rethoric device is used by repeating an idea presented before but withdifferent words with the same meaning:
"his gates" = "his courts"
"with thanksgiving" = "with praise"