Read this short news article: president barack obama issued a warning about a government shutdown if congress continues to refuse to raise the debt limit. since the early 2000s, the u. s. government has had a deficit. this means it has to borrow in order to pay for all its expenses. meanwhile, members of congress issued statements today claiming that raising the debt limit will force them to raise taxes on the middle class in the near future. based on the information in the article, which statement is true? a. congress's refusal to raise the debt limit caused taxes to be raised on the middle class. b. president obama's warning was an effect of members of congress refusing to raise the debt limit. c. president obama's warning caused members of congress to issue their statements. d. congress's failure to raise the debt limit caused the u. s. government to experience a deficit.