Answer:
Capitalization Error
Explanation:
This sentence contians a capitalization error, because the word "doctor" should not be capitalized.
In the tense that is it being used, it is a common noun, therefore requires no capitalization.
If the sentence was Doctor John does not make house calls., then yes, it would be capitalized.
Answer:
The answer is that my understanding was false.
Explanation:
The word alienated specifically refers to a social condition in which someone feels left out or distanced from a group of people in a work environment. Judging by the context of the sentence that begins with: "You believed then..." tells me that I had a wrong understanding of the social condition at work of my older sister Beth.