You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

A student measured liquid with a graduated cylinder. Which of the following units could be used to record the volume of the liquid?  
 (A) pounds (B) meters (C) grams (D) milliliters
D

Which would most likely be the characteristic of an object with a small volume and large mass?  
 (A) high density (B) low pressure (C) low viscosity (D) high temperature
A

What is the function of the nucleus in a cell?  
 (A) provides energy (B) provides nutrients (C) controls activity (D) controls movement

C