Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
College Test Prep
/
LSAT
/
Mistaken Negation
Grade Level
LSAT
LR.048 Mistaken Negation
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
A commentator says: "If the port closes, freight rates rise. The port did not close, so freight rates did not rise." Which critique states the logical problem without assuming any particular alternative cause?
A
The argument is valid because a conditional and its inverse always have the same truth value.
B
The premise identifies higher rates as sufficient for port closure but not as necessary.
C
The conclusion follows unless the commentator proves that the port remained open all day.
D
The premise identifies port closure as sufficient for higher rates but does not establish it as necessary for higher rates.
Submit Answer
