[Video] Q4: No change or scientists: and or scientists, and or scientists, and,

Explanation for Question 4 From the Writing Section on the Official Sat Practice Test 1

So number four says that yogurt manufacturers, 2 food, scientists, and government officials are also working together right now. 3 If we zoom in on what's happening here, we can see that we've got 4 a list going, right. The first thing in our list is the yogurt manufacturers. 5 They're item number one. The second thing in our list is food scientists. 6 They're item number two. And then the third thing in our list is government 7 officials, item number three, and the general layout for list forum is X 8 comma, Y comma and Z. 9 And so we notice here that the way they have it written, 10 they have a semi-colon where there really should be a comma. 11 So we want to find the answer choice that has a comma and it's 12 these two, right? So we know is no good. And B is no good. 13 And so now the question is, do we want the comma after the, 14 and, and the answer is no, we don't want to put a comma after 15 the, and only before the, and, and so we are 16 led to the correct answer of C. And so generally speaking, 17 this formula kind of right here shows how you 18 set up a list and it will pretty much always work. 19 Um, we want the two commas or just the commas to separate all the 20 items in the list and an and in front of the first one. 21 So our best answer here will be C.