Select the grammatically correct form of the given sentence from the following options.
His early experience enabled him to break off barriers between Scottish Catholics and Protestants.
1
His early experience enabled her to break down barriers between Scottish Catholics and Protestants.
2
His early experience enabled him to break down barriers between Scottish Catholics and Protestants.
3
His early experience enabled him to break away barriers between Scottish Catholics and Protestants.
4
Her early experience enabled him to break down barriers between Scottish Catholics and Protestants.