How does Khan’s comparison of learning to building a house contribute to the meaning of the text?

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Explanation:

Sal Khan focuses on student's mastery on subject/topic.

Explanation:He compares learning to the building of a house which a building contractor commences. Having laid the foundation and made about 75% progress on the foundation laying, he proceeds to lay the floors. He lays the 1st, 2nd floors on a wet foundation and moves to lay the 3rd floor but at this time everything collapses.

The process truly matters.

A student who haven't mastered a text/topic and goes ahead to another class or topic may encounter a problem in the upper level. If a student scores 80% in a class, it shows that there is a 20% which he is yet to grasp and master.

It's very important students comprehend and master topics/texts before heading to the next stage. What is fixed is that they actually master the subject/topic/text.

gg

explanation:

i believe the answer is d