---- the tremendous logistical hurdles caused by mountainous terrain, the relief convoy reached the isolated village in record time.

Answer and explanation

Correct answer: A. In spite of

  1. Step 1: The sentence contrasts huge logistical obstacles with the triumphant timely arrival of aid.
  2. Step 2: 'In spite of' is a preposition expressing concession followed by a noun phrase.
Answer
In spite of.
Why not the others: 'Owing to' expresses causal reason; 'With a view to' indicates intent; 'In case of' denotes conditional precaution.

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