VerifiedHint: To decide on appropriate punctuation, we have to understand the nature of the sentence. Is it a command, a request, an order, or a question.
Complete solution:
The given sentence is a request because it starts with the word ‘Please’. It is not a question. Therefore, we can eliminate the sentences which end with a question mark.
While speaking the sentence, we have to give a small pause after ‘Please’. Therefore, there needs to be a comma after ‘Please’. There also needs to be a comma after ‘pencil’ to separate the subject and the object. If we say ‘pencil’ and ‘sir’ together, it seems like the word ‘pencil’ is an adjective to describe the word ‘sir’. However, that is not the case. We need to separate the words pencil and sir to show that we are addressing the sir while asking for a pencil. Thus, there needs to be a comma after ‘pencil’. Hence the correct option is B.
Option a ends with a question mark and is therefore a wrong answer. A question mark that would have been used in the sentence was “Can you please lend me a pencil, sir?”.
Similarly, option c also ends with a question mark and is thus a wrong answer.
Option D does not use any comma. It is therefore a wrong sentence.
Hence, the correct answer is option ‘B’.
Note: Every sentence always ends with a punctuation mark. Any sentence without a punctuation mark at the end is wrong.
