Answer:
(a) alert("Some text");
Step-by-step explanation:
When coding in Javascript the correct code for creating an alert box is
alert("Some text");
This will generate an alert box at the top center of the user's screen that has the text which you have written inside the quotation marks. This is the simplified version of the original code which is also what is more commonly used. The original code would be
window.alert("Some text");