Historians believe that Martin Luther announced the Ninety-Five Theses by O giving a speech in a square in a small town.
O handing churchgoers fliers during a service.
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nailing a list to the door of a church in Germany.
O printing his beliefs in a newspaper in Wittenburg.

nailing a list to the door of a church in Germany.

Explanation:

Historians believe that Martin Luther announced the ninety-five theses by nailing a list on a church’s door in Germany.

It includes a list of propositions for the academic disputation which was written by Martin Luther in 1517.

They put further the positions of Luther which he believed to be the misuse of the practice of clergy.

Luther believed that the repentance from Christ can only be reduced if there is a presence of inner spiritual repentance and not the external one.

the answer for 3 is b and the answer for 4 is d

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation: