instruction:
In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
question:
Fact1: Flowing water can slowly dissolve carbon in sedimentary rock., Fact2: Rivers and streams are bodies of fresh, flowing water., Question: What can slowly dissolve carbon in sedimentary rock? (A) hydrocarbons (B) acetic acid (C) precipitation (D) evaporation (E) rivers and streams (F) puddles (G) ponds (H) nitrogen
answer:
E

question:
Fact1: Nonmetal elements are far fewer in number., Fact2: Elements to the right of the semiconductors are Nonmetals., Question: Elements to the right of the semiconductors are far what in number? (A) size (B) hole (C) fewer (D) eight (E) calcium (F) several (G) solid (H) shells
answer:
C

question:
Fact1: a balance is used for measuring mass of an object, Fact2: An object has no mass at absolute zero., Question: What object cannot be measured by a balance? (A) layers of fat (B) One at absolute zero (C) Warm air moving into cold air (D) all matter (E) direct damage to the lungs (F) slow and inefficient (G) movement of tectonic plates (H) Continents drifting
answer:
B