In which sentence is the past participle used correctly?

a. the delayed flights in new york had begun to affect other cities as well.
b. all children who wanted to eat at the museum should brought a packed lunch
c. i have swimming three miles today, and twenty in all this week.
d. all through high school, he had wore striped socks.

Consider the title and souce of the following articles. which one is most likely to exhibit a bias? (a) how to roast beef," by the food editor of a magazine (b) americans experiencing greater fatigue than previous generations, " by a harvard researcher (c) "americans' worsening eyesight not related to computer screen usage," by the public relations director of a major computer manufacturer (d) "sharing the burden: a history of cooperation," by a college professor