Courteous leave taking in a formal letter, is one among the following. Choose the appropriate option.

Yours faithfully,

The correct answer is Option (2) - Yours faithfully,

The appropriate option for courteous leave-taking in a formal letter is "Yours faithfully,"

• "Yours faithfully," is a standard closing used in formal letters, especially when the recipient's name is unknown or when the letter begins with "Dear Sir/Madam."
• The other options are more informal and not suitable for formal correspondence:
  • "Your Sincere Friend," suggests a personal relationship and is not formal.
  • "Your Lovingly." is too informal and affectionate for a formal letter.
  • "with lot of Love" is also informal and would be inappropriate in a formal context.