If every alternate letter starting from B is deleted from the English alphabet series, which of the following will be the thirteenth letter from the right end?

Given alphabet series: (Left end) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (Right end)

According to the question, every alternate letter starting from B is deleted from the given alphabet:

As B has even numbered place value in the English alphabetic series, therefore according to the condition every alternate will even numbered letter. Thus all the even-numbered letters are removed:

(Left end) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (Right end) ⇒ (Left end) A C E G I K M O Q S U W Y (Right end)

So, thirteenth letter from the right end will be ⇒ (Left end) A C E G I K M O Q S U W Y (Right end) → A

Hence, "Option 4" is the correct answer.