You own a restaurant called Ristorante Abigaille in Florence, Italy. A customer finds your site by clicking on your ads after performing each of these searches: “restaurant tuscany,” “restaurant florence,” “3 star restaurant florence,” and “3 star restaurant abigaille florence.” The customer makes a reservation after clicking on your ad that appeared with “3 star restaurant abigaille florence.” Using the data-driven attribution model, what keyword would receive credit for the conversion?

• The conversion would be attributed to each keyword equally, therefore each keyword would share equal credit (i.e., 25% each) for the conversion.
• The last keyword would be attributed with the conversion, therefore the last keyword would receive 100% of the credit for the conversion.
• The conversion would be attributed to each keyword proportionally, therefore each keyword would receive credit for how much it contributed to the conversion.
• The first keyword would be attributed with the conversion, therefore the first keyword would receive 100% of the credit for the conversion.