(Choose 1 answer)
Exit 25
What statement do you insert the 3rd line to invisible an image?
<head>
<script>
1. function demo(obj)
2. {
3.
4. }
</script></head>
<body>
<img src="image.jpg" onclick="demo(this)">
</body>
A. obj.opacity=0;
B. obj.visibility=0;
C. obj.style.display="none";
D. obj.style.visibility="visible";
