The phrase in this sentence is Nonrestrictive because there can only be one youngest brother, therefor the name Julian does not need to be in the sentence, because it is unnecessary to name him.
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The answer is D; extremely thin as a result of starvation
A possessive pronoun can be used as a direct object and as an indirect object. It can never be used as an object of preposition. Take the following sentence for example: She gifted her daughter a car. Her is a possessive pronoun, and her daughter is the indirect object of the verb gifted. Another example: He ate his breakfast quickly. He is the possessive pronoun, and his breakfast is the direct object of the verb ate.
Because if they did then they might be found where they were hiding