The best thing to do is to divide 76 by all of them, and if it is whole number, it is a factor. 76/4= 19 76/14= 5.438 76/8= 9.5 76/12= 6.333 As the only whole answer is 19, this means that 4 is the only multiple here Hope this helps :)
Looking at the options given, A) 4 is a factor of 76, B) 14 is not shown, so it is not a factor of 76, C) 8 is not shown either, and finally D) 12 is not a factor of 76. This means that from the options that were given, the correct answer is A) 4.