It's Fuerte for man and woman same as one person or other but if you have multiple-choice and is not in there then it has to be Fuertoso singular and for plural fuertes or fuertosos. they are less common do.
Hope I had helped.
El / Mira de usa asi 1/03/20
The answer is estudiamos because vamos is in the nosotros form
Spain is the first country to buy the airbus
