In the Venn diagram, E = 100 farms P = farms that grow potatoes S = farms that grow sugar beet 60 farms grow only potatoes or only sugar beet. of these 60 farms grow only potatoes. The number of farms that grow potatoes is three times the number that grow sugar beet. ​

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.