Which statements about prepositions in relative clauses are true in contemporary standard English? Select all that apply.
A preposition may be stranded at the end in formal or informal writing.✓Correct answer
A fronted preposition can be followed by that.
Whom can follow a fronted preposition when the antecedent is a person.✓Correct answer
Fronting is always more grammatical than stranding.
Explanation
Preposition stranding is grammatical across registers, and whom is available after a fronted preposition for a person. That cannot occur in that fronted position, and fronting is a stylistic construction rather than a grammatically superior one.