Con quien asistio Manuela al concierto
The answer is #1 because está is conjugated in the él/ella/usted form and it should be in yo form.
'La cancha' es un mercado muy grande en Cochabamba.
"<u>La cancha</u>" is a very large market in Cochabamba, Bolivia. It is called "<u>La cancha</u>" to a large area of commercial zones. So it's option B.
<h3><em><u>MissSpanish</u></em></h3>