The most accurate response regarding the effects of ethnic and religious diversity on conditions in Indonesia is: Indonesia has maintained peace despite a large number of religious and ethnic struggles.
While Indonesia does face challenges related to its ethnic and religious diversity, it has also managed to maintain a level of stability and peace through various means, including promoting national unity and tolerance. However, it is important to note that there have been instances of violence and conflict in some regions, but overall, the country has generally avoided widespread conflict.