$3.$ The activities illustrated in Table $3$ represents the coding of the mobile app and the physical

construction of the solar electrical panels. Implementation will occur from $1$ January $2024($start

time: day $1)$ and end on $29$ February $2024($end time: day $49).$

Table $3$: The label, description, and start time and end time of activities that inform the design and

eventual launch of the solar information system.

Activity label Activity description Start day End day

A Coding of mobile app $837$

B Physical assembly of solar panel units $1537$

C Testing of solar panel information systems $3348$

D Quality assurance of solar information systems $3348$

E Launch of solar information systems $4949$

$3\mathrm{.}1.$ Illustrate the activities listed in Table $3$ on a Gantt diagram. Adopt the layout illustrated in Figure

$1.(14)$

Figure $1$: Gantt diagram layout

$3\mathrm{.}2.$ Activities A and B are in a finish$-$to$-$finish dependency relationship, which means Activity A

cannot finish until Activity B finishes. However, notice that Activity A $$ coding of mobile app $$ is

not dependent on Activity B $$ physical assembly of solar panel units $$ to start. Explain why

Activity A is not dependent on Activity B to start.