Query about Question 8 from "(I'm Overwhelmed) Algebra Progress Quiz #2 (Version 2)" [7467]

GRE GRE Quant Problem Solving
1

https://www.gregmat.com/quizzes/quiz/im-overwhelmed-algebra-progress-quiz-2-version-2 (Question 8)

The solution video shows the right answer is option C, however C is being marked incorrect.

2

Solution video and in question answers are both D.