Final answer:
To decide on the correct change for Sentence 23, one must apply the rules of capitalization. Titles such as 'Park Commissioner' are generally capitalized only when before a name or as part of a title; 'meeting' and 'proposal' are not capitalized unless part of a formal name or title. Given no context, the likely change would be to lowercase 'park commissioner' unless it's in a specific title.
Step-by-step explanation:
To determine which change should be made in Sentence 23, it is essential to consider the rules of capitalization in English grammar. Typically, titles such as 'Park Commissioner' should be capitalized when they precede a name or when they are part of a formal title; otherwise, they should be written in lowercase. The word 'meeting' should only be capitalized when it is part of the formal name of a specific meeting, like 'Annual General Meeting'. Similarly, 'proposal' would only be capitalized if it's part of a title or a specific document's name.
Without context, the appropriate answer cannot be given definitively. However, if Sentence 23 shows these words used in a general sense, the correct answer would probably be a) change Park Commissioner to park commissioner, assuming it is not preceding a name or used as part of a formal title. In this case, 'meeting' and 'proposal' would typically not be capitalized unless they are part of official titles or formal names in this specific context.