Which of the following is spelled correctly?
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A
Mechanical
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B
Mechanicle
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C
Mecanical
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D
Machinical
"Mechanical" is spelled correctly with 'c' after 'h' and 'a' before 'n-i-c-a-l'.
A) Mechanical
Correctly spelled following Greek root mechanē (machine) with standard English adaptation preserving 'c-h-a-n-i-c-a-l' sequence without vowel substitutions.
B) Mechanicle
Incorrectly substitutes 'i' for 'a' before 'c-l-e'—violates standard suffix pattern '-ical' required for adjectives derived from nouns.
C) Mecanical
Incorrectly omits 'h' after 'c'—disrupts the essential 'c-h' digraph required for correct pronunciation and etymological accuracy.
D) Machinical
Incorrectly substitutes 'chi' for 'che' and 'i' for 'a'—double error creating nonstandard phonetic sequence that doesn't match the word's Greek root.
Conclusion
"Mechanical" follows consistent English spelling patterns for Greek-derived technical terms with the 'm-e-c-h-a-n-i-c-a-l' sequence preserved. Only option A maintains this pattern without letter omissions, substitutions, or transpositions that alter phonetic structure.