The numbers, text or cell references used by the function to return a value are called ARGUMENTS. In computers and technology, arguments is referred to as a value that is assigned to something that returns when it is stated in a code.
1. D you can't change the lens. Point and shoot cameras have a fixed lens so you don't need to change them.
2. C D-SLR. They have fast shutter and focus speeds for photography. They are used in a lot of professional settings.
a. A printout of all sales taken from the register at the end of the day Amazon providing you a list of products similar to others you've viewed
Explanation:
A recommendation engine is something which according to its user's preference provide them a list of similar objects. From various platforms according to its user's preference.
Similarly, Amazon shows you a variety of previous products which you have purchased. So, in this case option a is most appropriate. Here Amazon will first observe different sales trend from the register then as a recommendation engine it will provide you with a list of products similar to others you have viewed.