Identify the grammatical function of the bolded noun clause in this sentence: oscar suddenly understood that he was going to be the new president of key club. a) subject b) direct object c) predicate nominative d) object of a preposition

A person can identify the amount of sleep he or she requires by waking up naturally.

The amount of sleep needed varies from person to person

Explanation:

In the paragraph, the lines "Everyone needs different amounts of sleep; the number of hours varies from person to person" and "Let yourself wake up naturally without an alarm, and then record the number of hours it took for you to wake up on your own. Once you have identified the amount of sleep you need, schedule your bedtime according to your required amount of sleep." indicate that these two are right.

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