Agricultura because it talks about how she has abilities to care for plants and how every afternoon you can see her watering her flowers.
For the verb form <span>él cree, there are only two correct options: 3rd person and singular.
It is the third person and singular because él in Spanish means he in English, which is 3rd person singular.</span><span>
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Jaja estoy haciendo eto por puntos.
The opposite of viejo is JOVEN