How is the word 「暖かい」 read in hiragana?

Answer and explanation

Correct answer: D. あたたかい

「暖かい」 is read あたたかい and means warm.
Answer: あたたかい.
Why not the others: よわい: that is the reading of 「弱い」 (weak). かるい: that is the reading of 「軽い」 (light (weight)). いそがしい: that is the reading of 「忙しい」 (busy).

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