Message text cannot begin with a:

• A. Digit
• B. Letter
• C. Special Character and Space
• D. Punctuation

Answer: (C)

Input validation for how a message text starts. In many systems, the first character sets how the rest of the text is interpreted and processed, so allowing an alphanumeric start (a letter or digit) keeps parsing simple and predictable. A leading space can cause trimming or misalignment, and a leading special character can be misread as a command or formatting, which you want to avoid. That’s why the rule says the message text cannot begin with a space or with a special character. The option that expresses both of these restrictions—disallowing a space and any non-alphanumeric symbol at the start—best fits the behavior. The other options only address starting with digits or letters or focus on punctuation alone, which wouldn’t fully capture the intended constraint.