Marc has not paid the rent due under his apartment lease for several months and refuses to comply with the "no pets" restriction in his lease. Which of the following is correct about the landlord?

a. In most states, the landlord may use self-help to physically remove Marc from his apartment

b. The landlord may make the apartment undesirable to encourage Marc to leave

c. The landlord may bring an unlawful detainer action

d. The landlord may bring an action based on "quiet enjoyment"