Instructions: You are given a science question (hard-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.
Input: A student walks to school one morning and notices the grass is wet but the streets are dry. Which of these processes most likely caused the grass to be wet?  
 (A) condensation (B) erosion (C) evaporation (D) precipitation
Output:
A