<span>1.establish by counting or calculation; calculate."his debts were reckoned at $300,000"<span>synonyms:<span>calculate, compute, peg, work out, put a figure on, figure; <span>More</span></span></span>2.informalconclude after calculation; be of the opinion."he reckons that the army should pull out entirely"<span>synonyms:<span>believe, think, be of the opinion/view, be convinced, dare say, imagine, guess, suppose, consider, figure"I reckon I can manage that"</span></span></span>
preserve is a noun and many other parts of speech if u use it in different ways so yeah
<span>B. The boys want their dessert now. Since boys is plural, and so is their, this choice is correct. </span>
