Select the correctly spelled English word from the following options.

Introduction / Context:
This is another spelling recognition question. You must identify which of the given options is spelled correctly in standard English. The ability to spot whether a commonly used word is spelled properly is important in formal writing and in objective English sections of competitive exams.

Given Data / Assumptions:
Options provided are:

• "circulate"
• "cordonned"
• "binommial"
• "fontannel"

Exactly one is correct and the others contain spelling errors such as extra letters or incorrect vowel combinations.

Concept / Approach:
The method is similar to other spelling questions:

• Recall where you have seen the word in books or newspapers.
• Break the word into root and suffix, checking if that pattern is familiar.
• Be cautious about double letters, as they are frequently used to create distractors.

"Circulate" is a very common verb used in many contexts: blood circulation, circulating information, circulating air, and so on.

Step-by-Step Solution:
Step 1: Consider "circulate". This is a widely used and correctly spelled verb meaning to move around or to distribute. Step 2: Examine "cordonned". This seems to be a distorted form of "cordoned" (as in "cordoned off"), which is spelled with one "n" after the "o". Step 3: Look at "binommial". It closely resembles "binomial", a word from mathematics. The correct spelling is "binomial", not "binommial". Step 4: Review "fontannel". This appears related to "fontanelle", a term for the soft spot on a baby's skull. The given form is misspelled. Step 5: Thus, "circulate" stands out as the only correctly spelled word.

Verification / Alternative check:
You can also think about derivatives:

• "Circulation", "circular", and "circulatory" all share the root "circul-", confirming that "circulate" is consistent.
• "Cordoned off" is the correct phrase in reports about police or security; you will rarely see "cordonned" in standard writing.
• "Binomial theorem" is the standard term in algebra, not "binommial theorem".
• "Fontanelle" is the medical spelling, so "fontannel" is incorrect.

Why Other Options Are Wrong:

• cordonned: Uses an extra "n" and alters the standard form "cordoned".
• binommial: Doubles the "m" which is not done in "binomial".
• fontannel: Misses the ending "le" and modifies the correct term "fontanelle".

Common Pitfalls:
Sometimes candidates doubt very familiar words like "circulate" and become suspicious of them simply because the other options look technical or medical. Remember that exam setters purposely create strange looking distractors, but the correct answer may be a very ordinary everyday word.

Final Answer:
The correctly spelled word is circulate.