Consider the following HTML style rules :
A – body {color : red : }
B – h1 {color : red :}
C – p {color : red :}
h1 { color :red:}
D – p, h1 {color : red : }
Which of the above rules will display h1 elements and all the paragraphs of the following document in red ?
<body>
<h1>Trees</h1>
<p> Coconut tree</p>
<p>Rubber tree</p>
<h1>Flowers</h1>
<h2>Rose<h2>
</body>