Read the text and determine if the sentence is true (see options at the end):

How to braise lettuce<br>Prepare the lettuce. First take sweet romaine lettuce and discard any wilting or unhealthy looking leaves. Using a sharp knife, cut ½ of stem off the lettuce.

Sentence: Only a sharp knife can be used to cut the stem off the lettuce.
pick from the following. (1). Yes; (2). It's impossible to say; (3). No;
(2).