Which word can replace the phrase "lack of similarity" without changing the meaning of this sentence?

the lack of similarity in project quality is related to how much effort was exerted in the production of each project.

beneficiary

formulation

disparity

paradox

Which sentence from exploring the titanic best indicates the author’s enthusiastic tone at the end of the passage? now, finally, i went to my bunk to get some sleep. when i awoke, it was nighttime, and the good ship knorr was steaming quietly and steadily to our home. they had paid a big price over the years during my long months away from home, but they’d never once complained. as we came into port, i couldn’t believe my eyes.

Which answer best explains the consequences of the mass hysteria that took place during the salem witch trails

What does the author use to example of his son's tribal education in his letter to the teacher