"As fresh as a daisy" is a standard English idiom meaning feeling full of energy, lively, and well rested, often used after a good night's sleep or rest. Daisies open fully and look bright and crisp in the morning, which gave rise to this comparison.
"A rose" is linked to beauty or fragrance in other expressions, not to freshness or energy in this fixed form. "Milk" is associated with purity or whiteness in some contexts, not with feeling energetic. "Dew" suggests morning moisture but is not part of the accepted idiom describing a person's freshness.
Since English has a single fixed idiom for feeling energetic and lively, "as fresh as a daisy", option 1 is the correct answer.