In DTD, what declaration would you enter to allow the book element to contain a choice of mixed content, including parsed character data or child elements named author or title?

<!ELEMENT book (#PCDATA | author | title)*>

Explanation: The declaration to enter is-

<!ELEMENT book (#PCDATA | author | title)*>

answer; the correct answer to the above statement is to increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mother;

can you explain it better