Query about Question 14 from "Timed Quant Practice - Easy Section 2 Sample Test #3" [9127]

GRE GRE Quant Problem Solving
1

https://www.gregmat.com/quizzes/quiz/timed-quant-practice-easy-section-2-sample-test-3 (Question 14)

Could the answer also be 6?

Does the GRE not recognize a data set containing multiple modes?

2

“has one mode”