"Answer is Letter C"
C. if the sidewalk is wet, then it rained last night
If p, then q
p- it rained last night
q- the sidewalk is wet
Example:
If q, then p
p- it rained last night
q- the sidewalk is wet
Example:
If not p,then not q
p- it rained last night
q- the sidewalk is wet
Example:
If not q,then not p
p- it rained last night
q- the sidewalk is wet
Example: