Answer:
a. lack of evidence
c. irrelevant claim
d. false assumption
f. bad inference
Explanation:
the lack of evidence, an irrelevant claim, a false assumption, and a bad inference are all signs of a weak argument.
a grammatical error doesn't necessarily show that someone has a bad argument, as someone could still have a good argument even with grammatical errors.
a surprising observation also isn't a sign of a weak argument.
The argument is the disagreement and the opposing views on a topic. Lack of proof, irrelevant claims, false assumptions, and bad inferences are signs of weak arguments. Thus, options a, c, d, and f are the correct options.
An argument is diverging views and opinions on a matter that includes two contradictory and opposing viewpoints. An argument can be laid strong or weak based on many factors.
Lack of evidence to support the claim, irrelevant statements, and flawed assumptions make the argument weak and poor but the use of grammatically incorrect words and sentences and surprising observations does not make the argument weak.
Therefore, bad speculations, absence of evidence, and irrelevant claims make a weak argument.
Learn more about arguments here:
https://brainly.com/question/11757666
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