Which scenario is an example of a technological development that could cause historical accounts to change over time?

Researchers find several arrowheads buried beneath a Viking church.
Artifacts uncovered in the Alps show scientists that early humans dressed in fur.
DNA extracted from an Egyptian mummy reveals the way the person may have died.
Scientists learn about the impact of volcanic eruptions by studying remains from Pompeii.

d? maybe

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.