Select the correct option containing an 'Infinitive' functioning as an adverb modifying an adjective.

• ক The structural design of this bridge is difficult to replicate. ✅ সঠিক উত্তর
• খ He loves to operate heavy machinery at the site.
• গ She has a strong desire to win the national championship.
• ঘ To err is human, to forgive is divine.