If we can sell our old house then we will have enough money to buy a new one. We're rich so we do have enough money to buy a new one. So we'll be able to sell our old house.
A) S $\rightarrow$ M, R $\rightarrow$ M, S; this argument is valid
B) S $\rightarrow$ M, R$\rightarrow$ M, S; this argument is invalid
C) S $\rightarrow$M, R & ( R $\rightarrow$
M), S; this argument is valid
D) S $\rightarrow$ M, R & (R $\rightarrow$
M), S; this argument is invalid
E) none of the above

Question

If we can sell our old house then we will have enough money to buy a new one. We're rich so we do have enough money to buy a new one. So we'll be able to sell our old house.
A) S $\rightarrow$ M, R $\rightarrow$ M, S; this argument is valid 
B) S $\rightarrow$ M, R$\rightarrow$ M, S; this argument is invalid 
C) S $\rightarrow$M, R & ( R $\rightarrow$ 
M), S; this argument is valid 
D) S $\rightarrow$ M, R & (R $\rightarrow$ 
M), S; this argument is invalid 
E) none of the above

Quizplus · Accepted Answer

The Answer of If we can sell our old house then we will have enough money to buy a new one. We're rich so we do have enough money to buy a new one. So we'll be able to sell our old house.
A) S $\rightarrow$ M, R $\rightarrow$ M, S; this argument is valid 
B) S $\rightarrow$ M, R$\rightarrow$ M, S; this argument is invalid 
C) S $\rightarrow$M, R & ( R $\rightarrow$ 
M), S; this argument is valid 
D) S $\rightarrow$ M, R & (R $\rightarrow$ 
M), S; this argument is invalid 
E) none of the above

If We Can Sell Our Old House Then We Will →\rightarrow→

If We Can Sell Our Old House Then We Will $\rightarrow$