based on the curves, what is the spread pattern between government and corporate bonds? a$.$ the spreads are narrow in the short$-$term and then gradually widen in the long$-$term making it relatively more attractive for corporations to borrow in the long$-$term b$.$ the spreads are wide in the short$-$term and then gradually decrease in the long$-$term making it relatively more attractive for corporations to borrow in the long$-$term c$.$ the spreads are narrow in the short$-$term and then gradually widen in the long$-$term making it relatively less attractive for corporations to borrow in the long$-$term