The letters in acronymic abbreviations must be
a.
in the correct order
c.
in backwards order
b.
in the second part of the word
d.
from the first part of the alphabet

The letters in acronymic abbreviations must be in the correct order. Option A is correct.

An acronym is a word or name created as an abbreviation from the initial components of a phrase or a word or the first few letters of a word, usually individual letters and sometimes syllables.

Popular acronyms:

CTA - Call to action

ESL - English as a Second Language

GMO - Genetically modified organism

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