Answer:
Excite
Explanation:
The 4E of social media framework includes;
1. Excite
2. Educate
3. Experience
4. Engage.
I this case, the 4E applicable is Excite. Excite addresses exciting customers or users with relevant offers. The offers given to the customers must be relevant. The offers can be relevant to users by providing personalized offers. In this case, Staples EXCITE their customers by providing them relevant offers in form of coupon based on previous purchases through their mobile phones.