Institution: Directorate of Primary Education - DPE Exam: Primary Exam Question Solution 24-05-2019
Topic: History (ইতিহাস), Subject: General knowledge(সাধারণ জ্ঞান)

Best Answer Explained in Below-:

The correct answer to the question regarding the Chief Election Commissioner during the 1970 general elections in Pakistan is "D) বিচারপতি আবদুস সাত্তার". He served as the Chief Election Commissioner at a crucial time in the history of Pakistan, as the 1970 general elections were significant for their role in the political landscape of the country.

These elections were the first direct elections after the creation of Pakistan and were pivotal in revealing the political preferences of the Bengali population in East Pakistan. Justice Abdus Sattar's role as the Chief Election Commissioner was critical in ensuring the elections were conducted fairly and transparently amid heightened political tensions and regional disparities. His leadership helped in managing the electoral process, which led to a record voter turnout and which ultimately resulted in the dominance of the Awami League, led by Sheikh Mujibur Rahman.

The significance of these elections cannot be understated, as the results contributed to the political turmoil that eventually led to the independence of Bangladesh in 1971. This context highlights the importance of Justice Abdus Sattar's position and decisions during that pivotal electoral period. Thus, his appointment aligns with the historical facts surrounding the 1970 elections in Pakistan, confirming him as the correct choice for the question posed.