With expressions such as 'es raro que' you need to use the subjunctive form of a verb which is slightly different than the present, indicative form. So, the 'normal' form of ir for third person plural would be van. However, we need the subjunctive form here, which is vayan.
This means that the correct answer is A. Vayan a la escuela los sabados.
The form ven doesn't exist.
Eres alto translates to you're tall and Usted es alto translates to You are tall.
So I'm going to go with D
<span />
It’s incorrect because the verb should be in the to form, not the he she form. I hope this helps!
