Would you like to tell me （c.who can deal with this kind of problem
括号部分是个宾语从句,要用陈述语序,即主语在前,动词谓语在后,不用助动词.
错误选项分析：
a.疑问词错误,what应该改为why,问原因.
b.what do you want to be in the future：助动词do多余,要去掉.
d.where did you find the key：助动词did多余,要去掉.find改为found.