You create a Web page that contains the following image element. You need to write a JavaScript function that will dynamically change which image is displayed. Which code segment should you use?（）

• A、function changeImage（） {myImage.src = "image2.png"； }
• B、function changeImage（） { document.getElementById（"myImage"）.src = "image2.png"； }
• C、function changeImage（） { getElementById（"myImage"）.src = "image2.png"； }
• D、function changeImage（） { window.getElementById（"myImage"）.src = "image2.png"； }