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From 1982 to 1987 sales of new small boats increased between five and ten percent annually.

From 1982 to 1987 sales of new small boats increased between five and ten percent annually.
Five to ten percent is the annual increase in sales of new small boats in the years 1982 to 1987.
Sales of new small boats have increased annually five and ten percent in the years 1982 to 1987.
Annually an increase of five to ten percent has occurred between 1982 and 1987 in the sales of new small boats.
Occurring from 1982 to 1987 was an annual increase of five and ten percent in the sales of new small boats.
Explanation:
In choice D, the best answer, the phrase contemporaries of Harriet Tubman presents a complete possessive without adding an apostrophe (e.g., Tubman s). Choices A, B, and C use a redundant possessive: contemporaries of Harriet Tubman s. All choices other than D have errors in verb tense. Because the sentence describes essentially simultaneous actions completed in the past, the simple past tense forms maintained and had are required. Thus, the present tense forms has and maintain are incorrect in A, B, and E, as are . the present perfect have maintained in C and the past perfect had maintained in E.
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