The growing extremism of the South: a. led militant Southerners to argue that the U. S. government had the power to protect slavery but not to regulate it. b. caused many Southerners to seriously consider emancipation over a period of twenty-five years. c. was tempered by John C. Calhoun's ambition to become president. d. was based upon a broad and flexible interpretation of the Constitution.

d. was based upon a broad and flexible interpretation of the Constitution.

Explanation:

The South were heavy proponents of slavery and they resented the Federal government's efforts to reduce its occurrence. This feeling of discontent kept growing until it became quite extremist.

These extremists felt that the Federal government should not be able to impede upon the rights of states and so favored a broad and flexible interpretation of the Constitution that would support their rights as states and make them get away with slavery.

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

after a more than a decade and a half of combating al qaeda (aq) in afghanistan and pakistan,

the united states faces a diverse array of threats from al qaeda affiliates in the middle east and

africa. while senior al qaeda figures reportedly remain based in pakistan, the network includes

a number of affiliates across the middle east and africa including al qaeda in the arabian

peninsula (aqap), al qaeda in the islamic maghreb (aqim), and al shabaab. al qaeda also

retains a small but possibly growing presence in afghanistan. u.s. officials have stated that al

qaeda still maintains a foothold in syria through its ties to hay’at tahrir al sham (formerly

known as the nusra front), though the exact nature of that relationship may be evolving. this

report examines the threat posed by al qaeda affiliates in the middle east and africa as described

by u.s. officials and outside observers, as well as the u.s. approach to date in responding to these

threats. this was all i could find hope this : )