What is the first letter of the last word in the sentence formed by the jumbled words: leave do things not your unattended?

To determine the first letter of the last word in the sentence formed by the jumbled words "leave do things not your unattended," we first need to rearrange the words into a coherent sentence. The proper arrangement is "Don't leave your things unattended."

In this sentence, the last word is "unattended." Therefore, the first letter of "unattended" is 'U.' This makes 'U' the correct answer, as it corresponds to the initial of the last word in the constructed sentence. Understanding how to form coherent sentences from jumbled phrases is essential for interpreting and analyzing similar problems in mental ability tests.