A normal yield curve will $\_\_\_\_\_\_\_\_.$

a$.$

slope downward as it moves along its x$-$axis $($term$).$

b$.$

fluctuate depending on the federal funds rate

c$.$

slope upward as it moves along its x$-$axis $($yield$).$

d$.$

slope upward as it moves along its x$-$axis $($term$).$