In each word, only one syllable has the main/primary and the syllable is written in capital letters…

Analyze the question: The word is "underprivileged". You need to find the option that shows where the primary stress falls in this word. The question is a little oddly worded, but the task is to identify the correct stress pattern.

Concept: Compound-like words with the prefix "under-" (such as underprivileged, underdeveloped, underestimate) usually take their primary stress on the root word, not on the prefix. The root here is "privileged", pronounced /ˈprɪvəlɪdʒd/ (three syllables: PRIV-i-leged), and its stress falls on the first syllable of the root, "PRI".

Step by step:

1. Break the word into syllables: un-der-pri-vi-leged
2. The prefix "under" is a weak, secondary-stress part (the word carries a secondary stress there, but not the main one).
3. The root "privileged" is stressed on "PRI".
4. The standard pronunciation is /ˌʌndəˈprɪvəlɪdʒd/, so the primary stress is on the third syllable, "PRI".

Checking the options:

• A. un-der-PRI-vileged: stress on "PRI". Correct.
• B. UN-der-pri-vi-leged: stress on the prefix. Wrong.
• C. un-der-pri-vi-LEGED: stress on the last syllable. Wrong.
• D. unDER-pri-vi-leged: stress on "der". Wrong.
• E. un-der-pri-VI-leged: stress on "VI". Wrong.

Tip: For words with prefixes like under-, over-, and un-, the main stress usually goes on the root word. Compare underDEVeloped, underSTAND, and underPRIvileged. Say the root word on its own first (PRIvileged), and the stress will tell you where it falls in the full word.