Gregor, a Software Developer, Is Developing a Calendar Application

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 create a condition to ensure that all the years divisible by 4 should contain 29 days in February.Which of the following statements should he use?

A) if (thisYear % 4 === 0) {
DayCount[1] = 29;
}
B) if (this year/4 === 0) {
DayCount[2] = 29;
}
C) if (this year*4==0) {
DayCount[1] = 29
}
D) if (thisYear % 4 < = 29) {
DayCount[2] = 29;
}