Choose the question that can also have a plural noun cual por que que como

I didn't really get the question but I think what you are asking is this...:

cual ---> cuales

por que ---> (stays the same, can't be plural)

que ---> (stays the same, can't be plural)

como ---> (stays the same, can't be plural)

...so it's 'cual'

i'm glad, because you've also been promoted. mr. pardo, your partner told me you want to talk to me. congratulations, mr. ferrari! now go to rest because tomorrow a long day awaits you. yes. i want to congratulate you on that project, mr. ferrari. it was approved by the executives of the company. you. do you want to tell me about the project i presented to the company? that is excellent news! did all the executives like it? that's another excellent news, mr. pardo! everyone, without exception. we believe that the project will be a success and we want you to start working on this tomorrow. do you agree? yes of course! that's right, mr. ferrari. come in and take a seat, .