Following is a partially completed Work Breakdown Structure for a house construction project.

House

$1\mathrm{.}1$ Foundation

$1\mathrm{.}3$ Roof

$1\mathrm{.}1\mathrm{.}1$ Concrete

$1\mathrm{.}2\mathrm{.}3$ Paint

$1\mathrm{.}3\mathrm{.}1$ Roof Truss

Which of the following statements is the most correct regarding this project's WBS:

A Work Package named $"1\mathrm{.}2\mathrm{.}1$ Plaster" would be placed under Sub$-$Deliverable $"1\mathrm{.}1$ Foundation"

A Work Package named $"1\mathrm{.}2\mathrm{.}1$ Plaster" would be placed under Top Deliverable $"1\mathrm{.}2$ Walls$/$Ceilings$"$

A Work Package named $"1\mathrm{.}2\mathrm{.}1$ Plaster" would be placed under Work Package $"1\mathrm{.}2$ Walls$/$Ceilings$"$

A Work Package named $"1\mathrm{.}2\mathrm{.}1$ Plaster" would be placed under Sub$-$Deliverable $"1\mathrm{.}2$ Walls$/$Ceilings$"$