Question $6/13$

$\backslash$table$[[$Task ID$,$Description,Time needed to complete,Notes$],[$A$,$Conduct research,$3$ weeks,Must start today$],[$B$,$Write plan,$3$ weeks,Can do while doing Task A$],[$C$,$Register business,$1$ week,Can do while doing all other tasks$],[$D$,$Advertise business,$2$ weeks,Can do while doing Task E$],[$E$,$Hire staff,$2$ weeks,Can do while doing Task D$]]$

How many weeks will it take to complete this project?

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