The following JavaScript code correctly nests conditional st…

The following JavaScript code correctly nests conditional statements without syntax errors. if (isBirthday === true) {    if (age === 20) {       window.alert(“You have been alive for exactly two decades.”);    else if (age === 30) {       window.alert(“You have been alive for exactly three decades.”);    else {       window.alert(“A new year of your life begins today.”); } else {    window.alert(“Today is your un-birthday.”); }