9		.
						
						
							Which one of the following sentences would be a good topic sentence (first sentence) for the paragraph below? 
  The following symptoms will help you decide what sort of burn it is: Redness (first degree burns), blistering (second degree burns) and charring of skin (third degree burns). Third degree burns are the most serious. First and second degree burns should be treated with cold water. ALL burns should be covered with sterile non-stick dressings. In the case of chemical burns, they should be washed with a large quantity of water. If it's an alkali burn, vinegar may be added to the water. In the case of acid burns, however, sodium bicarbonate may be added to the water. Third degree burns require the immediate attention of a doctor, but you can still cover them with sterile non-stick dressings.
														
																	
										Burn injuries must be treated immediately.									
																		
										Don't burn yourself on the iron.									
																		
										Three men were burnt in a factory fire.									
																		
										He has a burning passion for chocolate fingers.