Answer:
B: Experts today estimate that 20,000- 30,000 laborers worked on the pyramid at any one time.
Explanation:
The main idea about the task of builting the pyramid, which required a huge workforce, is supported by the detail described in option B that says that the experts estimate the number of workers involved in this colossal project: <em>between 20,000 and 30,000 laborers is to be considered a huge workforce.</em>
Wrokforce: all the people who work for a company or organization.
This is the original sentence: <span>In a feeding frenzy, the pigeons descended upon the breadcrumbs that the kindly old man on the park bench continued to toss.
The correct answer is the prepositional phrase "on the park bench" acts as an adjectival phrase.
A is incorrect because a prepositional phrase cannot be a gerund phrase too. B is incorrect because a prepositional phrase cannot be a verb phrase as well. D is incorrect because 'to toss' is not a prepositional phrase, but rather an infinitive.
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Then write it idek what to tell you
