Which of the following acronym–expansion pairs is incorrectly matched?

2024

Which of the following acronym–expansion pairs is incorrectly matched?

Answer: C. MPEG — Motion Pictures Experts GroupConceptAn acronym is checked against the recognized words represented by its letters; replacing a word with a near-synonym changes the official expansion. For…

  1. A.

    MIDI — Musical Instrument Digital Interface

  2. B.

    LED — Light Emitting Diode

  3. C.

    MPEG — Motion Pictures Experts Group

  4. D.

    PDF — Portable Document Format

Show answer & explanation

Correct answer: C

Concept

An acronym is checked against the recognized words represented by its letters; replacing a word with a near-synonym changes the official expansion.

For standard technology terms, each letter must align with the accepted full name.

Application

The recognized expansions are MIDI—Musical Instrument Digital Interface, LED—Light Emitting Diode, MPEG—Moving Picture Experts Group, and PDF—Portable Document Format.

Contrast

  • MIDI uses Interface as its final word.

  • LED denotes a diode that emits light.

  • MPEG uses Moving Picture, not Motion Pictures, in the group name.

  • PDF uses Portable Document Format.

Result

Therefore, MPEG — Motion Pictures Experts Group is the incorrectly matched pair.

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