What irony is seen through out the novel Tess of the D'Urbervilles?

Situational: Alec's father added the name D'Urberville to Stokes-Tess doesn't know this

Tess is uneducated compared to Angel, and yet is the true modern thinker

Dramatic: Angel's hypocritical reaction to Tess's confession about her tragedy

Mrs. Clare's acceptance of Tess right as Tess and Angel separate