Which are correct:<br/><span style="color:#ff0000;">1-He is more a detective than a journalist.</span><br/><span style="color:#0000ff;">2-He is more <b>of</b> a detective than a journalist.</span><br/><br/><span style="color:#800000;">3-They are more detective<b>s</b> than journalist<b>s</b>.</span><br/><span style="color:#ff0000;">4-They are more detective than journalist.</span><br/><span style="color:#800080;">5-They are more<b> of</b> detectives than journalists.</span><br/><br/>Gratefully,<br/>Navi.