Task: Question Answering
Input (English): Question: Which of the following enzymes catalyzes phosphorylation using inorganic phosphate: 
 Options:  <1> Hexokinase. <2> Fosfofructoquinasa. <3> Glyceraldehyde-3-phosphate dehydrogenase. <4> Phosphoglycerate kinase. <5> Pyruvate kinase.
Output (English): 3