Which of the following statements is true about summaries?

a.A summary expresses the author's thoughts and ideas.
b.A summary should be about half the length of the original text.
c.A summary should be clear and concise.
d.A summary expresses the reader's thoughts and ideas.

I would go with C.

c. A summary should be clear and concise.

The correct statement about summaries is:

c. A summary should be clear and concise.

To determine which statement is true, we need to understand the purpose and characteristics of a summary. A summary is a condensed version of a longer piece of text that highlights the main points and key ideas. Its goal is to provide a succinct overview of the original content.

Let's examine each option to find the correct one:

a. A summary expresses the author's thoughts and ideas.
This statement is not accurate. A summary should not include the author's subjective thoughts and ideas. Instead, it should objectively present the main points and key information from the original text.

b. A summary should be about half the length of the original text.
This statement is a general guideline but not universally true. A summary's length can vary depending on the original text's complexity and content. The most important aspect of a summary is that it captures the essential information concisely, regardless of the specific length.

c. A summary should be clear and concise.
This statement is correct. A good summary should be clear, providing a straightforward understanding of the main ideas in a concise manner. It should exclude unnecessary details, focus solely on relevant information, and present it in a way that is easily comprehensible to the reader.

d. A summary expresses the reader's thoughts and ideas.
This statement is incorrect. A summary is an objective representation of the original text, not a reflection of the reader's personal thoughts and ideas. It should avoid opinions or interpretations and stick to a factual overview of the key points.

Therefore, the correct statement is option c: A summary should be clear and concise.