Fill in the blank (_) in the following sentence from the following choices.
Sentence: If you're interested in alpha hydroxy acid for skincare, I'd recommend starting with our cream rather than our serum since the _ is harsher.

Choice 1: If you're interested in alpha hydroxy acid for skincare, I'd recommend starting with our cream rather than our serum since the cream is harsher.
Choice 2: If you're interested in alpha hydroxy acid for skincare, I'd recommend starting with our cream rather than our serum since the serum is harsher.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The sentence should be "since the serum is harsher." Alpha hydroxy acids are typically used in exfoliating