During his presidency, ulysses s. grant
cracked down on corruption in government
took part in a plan to steal profits from the union pacific railroad
gave high-level advisory posts to untrustworthy friends and acquaintances
refused to take a strong lead against southern resistance to reconstruction

President Ulysses S. Grant during his presidency gave high-level advisory positions to his friends and acquaintances.

Explanation:

S. Grant served his country in different roles as from a soldier to the president. He served his nation (United States) as the 18th President. He became the youngest President of 19th Century in 1868.

After getting the position he stabilized the economy of US and established the department of justice. He also established the first civil service commission. His presidency was afflicted by several public scandals. During his presidency in 1873, the nation also faced severe economic depression.

b). (sounds as the best answer)