Choose the sentence that most effectively follows the conventions of standard written English:

A. Wilbur and Orville Wright were two brothers, and they tested their prototype airplane on a beach in Kitty Hawk, North Carolina.

B. The two brothers, Wilbur and Orville Wright, tested their prototype airplane on a beach in Kitty Hawk, North Carolina.

C. Testing their prototype airplane on a beach in Kitty Hawk, North Carolina, were two brothers, Wilbur and Orville Wright.

D. The beach in Kitty Hawk, North Carolina was where two brothers, Wilbur and Orville Wright, came and tested their prototype airplane.

The sentence structure that most effectively follows the conventions of standard written English is option b: The two brothers, Wilbur and Orville Wright, tested their prototype airplane on a beach in Kitty Hawk, North Carolina. This sentence correctly uses commas to set off the nonrestrictive clause "Wilbur and Orville Wright" and places the subject "The two brothers" before the verb "tested." It also provides clear and concise information about who tested the prototype airplane and where it was tested.

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