title: Regarding retain count
body: <pre><code>NSArray *arr = [[NSArray arrayWithObjects:@"ag", @"sdfg", @"dgh", nil] retain];
  NSArray *newArr = [[arr mutableCopy] retain];
  [arr release];
  [newArr release];
  newArr = [NSArray arrayWithObject:@"sdfdhs"];
  </code></pre>
  
  <p>What will retain count after each line? Please explain this to me. Thanking You...</p>