Armando toma clases en la universidad. cuatro cinco seis julia toma dos clases de matemáticas lengua ciencias armando toma italiano y astronomía japonés geología armando y julia estudian los martes y jueves. filosofía antropología italiano

Armando takes five subjects:

So Armando toma cinco clases en la universidad means Armando takes five classes at the university. It is important to say that this sentence stands for the simple present. In this way, toma is the conjugation of the verb tomar for the third person singular.

Julia takes four subjects:

So Julia toma dos clases de ciencias means Julia takes two science classes. These two science classes are Astronomy (astronomía) and Geology (geología).

From the four subjects Armando takes, we know that two are Italian (italiano) and  Japanes (Japonés), that is, 50% if his classes are language classes. In other words, Armando toma italiano y japonés translates into Armando takes Italian and Japanese. This sentence is also given in the simple present standing for the third person singular.

If you take a look on the lists of Armando and Julia, you can realize that the matching subjects are italian (italiano) and cálculo (calculus). In this way, we know that the correct answer is italiano because this option is given in the answers. So Armando y Julia estudian italiano los martes y jueves translates into Armando and Julia study Italian on Tuesdays and Thursdays.

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y ahora me estoy dando cuenta