The company does not directly address any of the above options in terms of modern slavery, although there is a "Whistleblowing hotline to enable employees and third parties to report possible violations of the law or of company guidelines or policies" (Page 2). This hotline is in relation to "tackling slavery and human trafficking" (Page 2).
pg.3 point 4: Some suppliers are monitored more closely and if they are found to have a violation and do not fix it their "business dealings were terminated"
Could not find any disclosure that suggests a remediation strategy is 'in development' so removed that answer option.