Definition: In this task, you are given a sentence in English, and your task is to translate it into Persian.
Input: and his favorite hypothesis was that his poems must have been doctored by the office boy or the stenographer.
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
و فرض مطلوبش این بود که حتما پیشخدمت با تندنویس روزنامه چنین تغییراتی را مرتکب شده‌اند،