Which one of the following sentences has an error in capitalization?

A. We crossed the Snake River and miles of nothing much on our way to Abilene.

B. My Father has decided to retire in the fall of next year.

C. They say the Power River is a mile wide and an inch deep.

D. That day, across the great river, we got our first view of the Washington Monument.

I'll be happy to check your answer.

http://guidetogrammar.org/grammar/capitals.htm

i think the answer is b

B is correct.

To identify the sentence that has an error in capitalization, we need to analyze the capitalization rules in the English language. Generally, proper nouns such as names of specific people, places, or things should be capitalized, while common nouns and adjectives should not.

Let's break down each sentence and examine the capitalization:

A. We crossed the Snake River and miles of nothing much on our way to Abilene.
- The capitalization in this sentence is correct. The proper noun "Snake River" and the proper noun "Abilene" are correctly capitalized.

B. My Father has decided to retire in the fall of next year.
- In this sentence, the capitalization of "Father" is incorrect. "Father" should not be capitalized unless it is being used in place of a name; in this case, "my father" is a common noun and should be lowercase.

C. They say the Power River is a mile wide and an inch deep.
- The capitalization in this sentence is correct. "Power River" is a proper noun and is correctly capitalized.

D. That day, across the great river, we got our first view of the Washington Monument.
- The capitalization in this sentence is correct. "Washington Monument," a proper noun, is correctly capitalized.

Therefore, the sentence with an error in capitalization is B. The correct sentence would be: "My father has decided to retire in the fall of next year." The word "Father" should not be capitalized unless it is used as a name.