Fill in the blank (_) in the following sentence from the following choices.
Sentence: My shampoo did not lather easily on my Afro hair because the _ is too little.

Choice 1: My shampoo did not lather easily on my Afro hair because the shampoo is too little.
Choice 2: My shampoo did not lather easily on my Afro hair because the hair is too little.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2. The sentence should read "because the hair is too dense." However, the choices provided do not include that option. The closest option is