Spelling – Identify the one misspelled word among options A–D, or choose “All correct” if every option is correctly spelled. A) Peaceful B) Skillful C) Beautyful D) Hopeful

Introduction / Context:
This item targets suffix formation with -ful and the effect of base-word changes when attaching suffixes. English often drops silent letters or adjusts vowels in the base word before adding -ful.

Given Data / Assumptions:

• Options: Peaceful, Skillful (AmE; BrE “skilful”), Beautyful, Hopeful.
• Standard acceptance: both “skillful” (AmE) and “skilful” (BrE) are correct; “peaceful” and “hopeful” are standard.

Concept / Approach:
Check whether the suffix -ful attaches to the correct base form. The adjective from beauty is beautiful, not “beautyful”. The y changes to i before -ful in this family because the actual base adjective is beautiful (from “beaut” + -iful historically), not “beauty” + -ful.

Step-by-Step Solution:

Verification / Alternative check:
Dictionary check: “beautiful” is the only standard form; “beautyful” is flagged as a misspelling. Morphology note: “beauty” (noun) → “beautiful” (adjective) does not form by direct suffix addition to the noun spelling.

Why Other Options Are Wrong:

• Peaceful: Correct.
• Skillful: Correct in AmE (BrE “skilful”).
• Hopeful: Correct.

Common Pitfalls:
Assuming “add -ful to any noun” preserves the noun spelling. Some adjectives have distinct historical formations (beautiful, dutiful from duty, etc.).

Final Answer:
Beautyful