Circle the appropriate answer choice; only the major product$($s$)$ is correct.

$1.$

a$.1.C{l}_2,FeC{l}_3,$;$2.H_{2}S{O}_4,$;$3.HN\frac{O_3}{H_2}S{O}_4,$;$4.H_3{O}^{+}$

b$.1.H_{2}S\frac{O_4}{H}N{O}_3$;$2.C{l}_2,FeC{l}_3$;$3.NaN{O}_2,$ THF

c$.1.HN\frac{O_3}{H_2}S{O}_4,$;$2.H_{2}S{O}_4,$;$3.HN\frac{O_3}{H_2}S{O}_4,$

d$.1.B{r}_2,FeB{r}_3,$;$2.H_{2}S{O}_4,$;$3.HN\frac{O_3}{H_2}S{O}_4,$;$4.H_3{O}^{+}$

$2.$ Which is the correct name of this compound?

a$.2-$carboxy$-1-$chloro$-3-$hydroxybenzene

b$.6-$hydroxy$-2-$chlorobenzoic acid

c$.6-$chloro$-2-$hydroxybenzoic acid

d$.2-$chloro$-6-$hydroxybenzoic acid

$3.$

a$.1.BrSH,FeB{r}_3,$;$2.$ NaOH,$C{O}_2$

b$.1.HN\frac{O_3}{H_2}S{O}_4,$;$2.$ Fe$,HCl$;$3.$AcOH,$NaN{O}_2,$ then $H_{2}O,$;$4.$NaOH,$C{O}_2$;$5.S_8$

c$.1.C{H}_{3}Br,FeB{r}_3,$;$2.H_{2}S{O}_4,$;$3.B{r}_2,FeB{r}_3,$;$4.$NaSH, ether; $4.H_{3}O+$;$5.H_{2}Cr{O}_4$

d$.1.C{H}_{3}Br,FeB{r}_3,$;$2.H_{2}Cr{O}_4$:$3.H_{2}S{O}_4.$:$3.B{r}_2,FeB{r}_3,$;$4.$NaSH, ether; $5.H_3{O}^{+}$

$4.$

a$.1.HN\frac{O_3}{H_2}S{O}_4,$;$2.Fe,HCl,$;$3.ClC(O)C{H}_3,FeC{l}_3,$;$4.$ AcOH,$NaN{O}_2,$ then CuCN

b$.1.ClC(O)C{H}_3,FeC{l}_3,$;$2.H_{2}S{O}_4,$;$BrCN,FeB{r}_3$;$4.H_3{O}^{+}$

c$.1.C{l}_2,FeC{l}_3,$;$2.ClC(O)C{H}_3,FeC{l}_3$;$3.$ NaCN, THF

d$.1.B{r}_2,FeB{r}_3,$;$2.$ NaCN, THF; $3.ClC(O)C{H}_3,FeC{l}_3$