Complete the following: As clear as:

A. Mirror
B. Crystal 
C. Glass
D. Diamond

🧠 Explanation:

In “As clear as ___,” “crystal” means very clear, like crystal glass. Idioms, taught in Pakistan’s English classes, add color to language. They’re important for lively writing or speaking, used in essays or conversations to engage readers or listeners, making communication vivid in school or daily life.