Question

A job application letter is effective in convincing the reader that an applicant is knowledgeable of the company by?
a.)providing relevant evidence from what the applicant has done in the past to support claims that this person can do the job.
b.)presenting information about the company as if it will be news to the reader.
c.)discussing 10 to 12 specific details to demonstrate the applicant's knowledge.
d.)making the job application letter general enough so that it can be sent to a number of different companies.


i am confused between A or C