In the question below four words are given in bold. These four words are may not be in their correct position. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of the words that replace each other.

Despite the determined (A) weather, the hardy hikers perilous (B) on their embarked (C) journey up the mountain, inclement (D) to reach the summit.

Correct option is C

The correct combination of the words that should replace each other is “ A-D & B-C”. The sentence thus formed would be “Despite the inclement weather, the hardy hikers embarked on their perilous journey up the mountain, determined to reach the summit.”
The following grammatical rules have been used in this sentence:
Subject-Verb Agreement: "the hardy hikers" is the subject, and "embarked" is the verb.
Adjective placement: "inclement" is an adjective modifying "weather," and "perilous" is an adjective modifying "journey."
Determined means having made a firm decision and being resolved not to change it.
Perilous means something full of danger or risk.
Embarked means to begin (a course of action).
Inclement means unpleasant cold or wet weather.