A. p.a{color:red} B. p,a{color:red} C. p>a{color:red} D. pa{color:red}
A. paspanem{color:red} B. p,a,span,em{color:red} C. p>a>span>em{color:red} D. p{color:red}a{color:red}span{color:red}em{color:red}
A. div.a,b {} B. div a,b{} C. div.a,div.b{} D. div:a,div:b{}