Which of the following is NOT the reason of Syrian’s withdrawal from Lebanon?

Lebanon is in the process of holding its first general elections for more than 30 years without the heavy shadow of a Syrian military presence over much of the country. The Syrians pulled out in April, after huge demonstrations in Beirut—and international condemnation—following the assassination of the former Prime Minister, Rafiq Hariri. His death and the recent killing of a prominent anti-Syrian journalist, Samir Kassir, have been blamed by many Lebanese on Syria—a charge the Syrians have strongly denied. The first round of the elections was held last Sunday in Beirut and over the next few weeks there’ll be voting in other parts of the country.