Answer: The Good Category
Explanation: A credit score is a calculated number ranging from 300-850 which elucidates an individual's creditworthiness and evaluates the probability that a lender will repay his loan with a higher score indicating higher creditworthiness.
This is calculated by factoring 5 key stats.
1. Payment history
2. Credit history
3. Credit utilization rate
4. New credit and,
5. Types of credit
A FICO score of 688 falls under the "Good" category which ranges from 670-739.