Hello!<br/><br/> Which is the right from the following options and why:<br/><br/> 1) for <u><b>six-month</b></u> training <br/> 2) for <u><b>six month</b></u> training <br/> 3) for <u><b>six-months</b></u> training <br/> 4) for <u><b>six months</b></u> training <br/><br/> And does <u><b>training</b></u> need an article? <br/><br/> - for <u><b>(a)?</b></u> six-month training <br/><br/>Thank you!<br/>