Answer:
The correct answer is saber.
Step-by-step explanation:
The verb "saber" in Spanish can express knowledge, although in the preterite it can mean "to find out".
Let's see examples:
"Yo se como hacer pastel." --- It implies knowledge.
"¡Lo sabía! - This exclamation is used to give a sense of discovery to a thing.
Next I will write how the verb Saber is conjugated in the present and in the preterite for the different people of Spanish.
Present:
Yo se
Tú sabes
Él / Ella / Usted sabe
Nosotros/as sabemos
Ellos/Ellas/Ustedes saben
Preterite:
Yo sabía
Tú sabías
Él / Ella / Usted sabía
Nosotros/as sabíamos
Ellos/Ellas/Ustedes sabían