TASK DEFINITION: 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").
PROBLEM: Fact1: Differentiation is the process by which unspecialized cells become specialized., Fact2: T helper cells differentiate to Memory cells and effector cells., Question: memory cells and effector cells are what compared to T helper cells (A) dermal & vascular tissue (B) antibodies (C) fetal development (D) antigens (E) occurs over a wide range (F) prokaryotic cells (G) unicellular organisms (H) more specialized

SOLUTION: H

PROBLEM: Fact1: Air pollution harms the respiratory and circulatory systems., Fact2: Cars are a significant source of air pollution., Question: What harms the respiratory and circulatory systems? (A) oil (B) rain (C) sulfur (D) cars (E) tires (F) coal (G) tar (H) bicycles

SOLUTION: D

PROBLEM: Fact1: a refrigerator is used for keeping food fresh for a long period of time, Fact2: People consume foods that are cold from refrigeration., Question: What used for keeping food fresh for a long period of time? (A) cooled (B) viruses (C) Energy (D) heat (E) Winter (F) bacteria (G) cold (H) phytoplankton

SOLUTION:
G