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

How to read an ex's body language<br>Study their smile. A genuine smile is a good indicator that they are happy to see you. When there is a " eye twinkle " involved, this may be a smile in which the whole face, even their eyes, are engaged with you.

Sentence: Smiles are good things
Choices: a. Yes; b. It's impossible to say; c. No;
a.