0List<object> items = new() { 1, "two", 3, null, 4.5 };, which code snippet correctly sums only the integer values using type checking patterns?if (item is int n) to add only integers. int sum = 0;
foreach (int n in items)
{
sum += n;
}
Console.WriteLine(sum); tries to cast all items to int in foreach, causing error. int sum = 0;
foreach (var item in items)
{
if (item is double d) sum += (int)d;
}
Console.WriteLine(sum); sums doubles cast to int, which is incorrect. int sum = 0;
foreach (var item in items)
{
sum += (int)item;
}
Console.WriteLine(sum); casts all items to int without checking, causing runtime errors.is int var to filter integers safely [OK]if (item is int n) to sum integers safely [OK]15+ quiz questions · All difficulty levels · Free
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