Question

______ letters are sent to people whom we don't know an a personal level.
(a) chain
(b) Infomal
(c) photo
(d) formal
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Answer 1

Answer:

Informal is the correct answer Mark me brainliest.

Answer 2

(d) Formal letters are sent to people whom we don't know an a personal level.  

Formal letter:

Formal letters are like business letters in which only the required information is entered in a clear and consice form by following absolute format of letter writing.

Types of letters:

• Letters are an important mode of communication since ancient times. Through the development of technology, Online emails are prefered over conventional written letters.
• Informal letter - Informal letters are written without following the conventional format of a letter writting and including spontaneous thoughts. It is usually written to friends, family and relatives.
• Chain letters - These are the letters which are used when a message has to be conveyed to a number of people. The message is made into multiple copies and send to the required number of people.