Which of the following intermediates is common to both the pentose phosphate pathway and glycolysis?

A Fructose-6-phosphate ✓
B Glyceraldehyde-3-phosphate
C Ribose-5-phosphate
D Erythrose-4-phosphate

Explanation

Fructose-6-phosphate is an intermediate in glycolysis and can also be converted to ribose-5-phosphate through the pentose phosphate pathway, serving as a link between these two metabolic pathways.

Source

Stryer Biochemistry
Carbohydrate Metabolism Biochemistry Pentose Phosphate Pathway Hard MEDICAL Confidence: high