Select the option that shows the correctly spelled English word.

Introduction / Context:
This spelling question requires you to pick the correctly spelled word from a set of similar looking options. The words resemble "quaffing", "convenor" or "conveyor", "fuselage", and "bumbling". Only one of them is correctly spelled in standard English. Spelling accuracy is essential in exams because it reflects careful reading and familiarity with written English.

Given Data / Assumptions:

• Options: quaffing, conveynor, fuselag, bumbbling, quafing.
• We assume standard dictionary spellings.
• Exactly one spelling is correct; the others contain extra letters or wrong vowels.

Concept / Approach:
The word "quaff" means to drink something, especially an alcoholic beverage, heartily or with enjoyment. The present participle and gerund form is "quaffing", spelled q u a f f i n g, with a double "f". Many English verbs double the final consonant before adding "-ing" when a short vowel precedes it. The other options are misspellings of known words: "convenor" or "conveyor", "fuselage", and "bumbling". Recognising these root words helps to identify the only correct spelling.

Step-by-Step Solution:
Step 1: Examine "quaffing". Starting from the root "quaff", we add "ing". The correct form keeps the double "f", resulting in "quaffing". This matches known dictionary spelling. Step 2: Examine "conveynor". It seems to blend "conveyor" and "convenor". The correct spellings of related words are "conveyor" for a belt system and "convenor" for someone who convenes a meeting. "Conveynor" matches neither of these and is incorrect. Step 3: Examine "fuselag". This looks like an incomplete version of "fuselage", which refers to the main body of an aircraft. The missing final "e" marks it as wrong. Step 4: Examine "bumbbling". The base word "bumbling" has one "b" in the middle, not two consecutive "bb" after "bum". So "bumbbling" is a distorted spelling. Step 5: Examine "quafing". The correct root is "quaff" with a double "f". Dropping one "f" produces a wrong form, and the vowel and consonant pattern no longer matches the recognised word. Step 6: Conclude that "quaffing" is the only option that matches standard English spelling.

Verification / Alternative check:
Use the word in a sentence: "The travellers were quaffing water after the long journey." This looks and sounds natural. Moreover, standard spelling rules support doubling the final consonant in "quaff" before adding "ing". For the other words, dictionary checks confirm that valid forms are "convenor", "conveyor", "fuselage", and "bumbling", none of which match the distorted forms in the options. This further confirms that "quaffing" is the only correct spelling here.

Why Other Options Are Wrong:
"Conveynor" mixes two separate correct words and matches neither, so it is wrong. "Fuselag" is missing the final "e" found in "fuselage". "Bumbbling" has an unnecessary double "b", which does not appear in the proper spelling "bumbling". "Quafing" incorrectly uses a single "f", ignoring the actual root "quaff". These modifications create non standard forms that would be considered spelling mistakes in examinations and formal writing.

Common Pitfalls:
Students often misinterpret double consonants and assume that removing or adding an extra letter is harmless. However, such small changes can completely alter the correctness of a word. Another pitfall is being influenced by pronunciation alone; for instance, "quafing" may sound similar to "quaffing" but is not spelled the same. Regular reading and exposure to authentic English texts help build a mental image of correctly spelled words.

Final Answer:
The correctly spelled word is "quaffing".