How does a Trojan horse get past security mechanisms to harm a victim?

The MaxDropDownItems property

a) sets the maximum number of items the list can hold b) creates a scrollbar on the list after it exceeds the set max c) creates a max to how many items the user can add to the list d) can be set from 1 to 1000

In the header file of a person class, which of the following is the default constructor?

a) person () ; b) person (int, int); c) person::person ( ); d) person person1;