Who is typically considered to be the father of computing

You wanted to look up information about alzheimer's, but you were unsure if it was spelled "alsheimer's" or "alzheimer's." which advanced search strategy would be useful? a) a boolean search b) using a wild card in your search c) trying different search engines d) doing a search for "alsheimer's not alzheimer's" asap. ill give brainlist.

Ineed to know the anwser to all these questions

When is it most apprpriate for a development team to change the definition of done