单选题

NSMutableArray *array = @[@"bob", @"s...

Question

NSMutableArray *array = @[@"bob", @"steve", @"john"]
[array addObject:@"Peter"]
NSLog(@"%@",array)
运行结果是

A. bob, steve, john

B. 程序崩溃

C. bob, steve, john,Peter

D. steve, john