<p><span>The answer is (B) has risen</span><br></p><p></p>The sentence is referring to an action that has happened in the past and has a result in the present. This is indicated by the word "during the past six months" and the phrase "leading to a nationwide economic recovery".
In English, we use the present perfect tense (have/has + past participle) to talk about actions that started in the past and continue into the present. In this case, "has risen" is the correct form of the verb "to rise" in the present perfect tense.<div><br></div><div>(A) "rise" is incorrect because it is in the simple present tense and does not indicate that the action has happened in the past. </div><div>(C) "will rise" is incorrect because it is in the future tense and does not indicate that the action has already happened. </div><div>(D) "rising" is incorrect because it is in the present participle form and does not indicate that the action has already happened. </div>