Gregor, a Software Developer, Is Developing a Calendar Application

Multiple Choice

Gregor, a software developer, is developing a calendar application. He has to use several if conditional statements to ensure that the calendar displays the exact number of days present in each month of each year. He creates a dayCount array to keep track of the number of days in each month.
-Gregor wants to ensure February contains 29 days only in the year 2020 as it is a leap year.Which of the following should Gregor use to set the value in the dayCount array?

A) if (thisYear === 2020) {
DayCount[1] = 29;
}
B) if (dayCount=29)
{
2020;
}
C) if {
ThisYear = 2020;
DayCount[1] == 29;
}
D) if {
DayCount=29 && this year=2020;
}