Context: About Dumbledore 's absolute trust in Severus . And then Tonks lied . She pretended that she herself did n't know the reason why Dumbledore trusted Severus . ' But Dumbledore swore he was on our side ! ' said Tonks urgently , trying to convince herself more than anything .
Question: Why did Tonk lie to herself about Severus ?
Option 0: Tonks lied to herself because she wanted to be convinced .
Option 1: Tonk lied to herself because she wanted to believed in Dumbledore .
Option 2: Tonks lied to herself because she wanted Severus to be trustworthy .
Option 3: Tonks lied to herself because Dumbledore would have wanted her to .
Answer: 1