Given the truss below, the number of zero$-$force members in this truss is

A$)0$

B$)1$

C$)2$

D$)3$

E$)4$

Questions $9$ and $10$ refer to the following problem

For the truss shown below, $P_1=600lb,P_2=600lb,P_3=800lb,a=4ft,h=4ft$

Question $9$

Using the method of sections, the force in member FG in lb is mostly near $-.$ Note: $(T)=$ Tension, $(C)=$ Compression.

A$.2000(T)$

B$.2200(C)$

C$.1000(C)$

D$.800(T)$

E$.500(T)$

Question $10$

Using the method of sections, the force in member $BC$ in $lb$ is mostly near $(T)=$ Tension, $(C)=$ Compression.

A$.500(T)$

$.$ B$.2200(C)$

C$.800($T$)$

D$.1000($C$)$

E$.2200($T$)$