Student or Learner
I am having trouble of determining which of the following is correct in my writing, 1) and 3) sound more natural to me (but they seem bad grammar). 2) and 4) are what I have been taught at school, matching plural with plural, but they sound a bit less natural to me (I am not sure)
1) Some of the credit cutbacks are a natural response to companies' past excesses
2) Some of the credit cutbacks are natural responses to companies' past excesses
3) I don't like people who are a threat to our national security
4) I don't like people who are threats to our national security
Please kindly advise which ones are preferred.
Anthony the learner
I have no problems with 1 & 3, especially if, say, five people constitute a single threat. Mind you, I'm a BrE speaker and we tend to be relaxed on singular and plural issues.