The correct answer is "#conten h1, #content a{ ... }". This answer is correct because it correctly selects the h1 element within the div with id "content" and the anchor element within the same div. The CSS selector "#conten h1" is a typo and should be corrected to "#content h1". The selector "#content h1+a" selects the adjacent sibling of the h1 element within the div with id "content", but there is no adjacent sibling in the given HTML. The selector ".content h1, a" selects the h1 element within an element with class "content" and any anchor element, but there is no element with class "content" in the given HTML. The selector "#content h1 a" selects an anchor element within an h1 element within the div with id "content", but there is no anchor element within the h1 element in the given HTML.