The correct answer is soporific.
The word soporific comes from Latin, where sopor means sleep. So soporific in English relates to something which tends to make people drowsy or sleepy. In this case, David felt very sleepy during his long trip to his parents, and even though he loves his parents, he hates the voyage.
Answer:
The doctrine was called the Manifest Destiny.
Explanation:
The correct answer is the "heuristic technique."
The Heuristic Technique or also known basically as heuristic, is any way to deal with critical thinking, learning, or disclosure that utilizes a down to earth strategy not ensured to be ideal or immaculate, but rather adequate for the prompt objectives.