Which one is the correct answer

1 Listen my children and you shall hear
Of the midnight ride of Paul Revere,
On the eighteenth of April, in Seventy-five;
Hardly a man is now alive
5 Who remembers that famous day and year.

He said to his friend, "If the British march
By land or sea from the town to-night,
Hang a lantern aloft in the belfry arch
Of the North Church tower as a signal light,--
10 One if by land, and two if by sea;
And I on the opposite shore will be,
Ready to ride and spread the alarm
Through every Middlesex village and farm,
For the country folk to be up and to arm."

15 Then he said "Good-night!" and with muffled oar
Silently rowed to the Charlestown shore,
Just as the moon rose over the bay,
Where swinging wide at her moorings lay
The Somerset, British man-of-war;
20 A phantom ship, with each mast and spar
Across the moon like a prison bar,
And a huge black hulk, that was magnified
By its own reflection in the tide.

Meanwhile, his friend through alley and street
25 Wanders and watches, with eager ears,
Till in the silence around him he hears
The muster of men at the barrack door,
The sound of arms, and the tramp of feet,
And the measured tread of the grenadiers,
30 Marching down to their boats on the shore.

Then he climbed the tower of the Old North Church,
By the wooden stairs, with stealthy tread,
To the belfry chamber overhead,
And startled the pigeons from their perch
35 On the sombre rafters, that round him made
Masses and moving shapes of shade,--
By the trembling ladder, steep and tall,
To the highest window in the wall,
Where he paused to listen and look down
40 A moment on the roofs of the town
And the moonlight flowing over all

What did Paul Revere tell his friend to do if the British were going to attack by sea?
A) Hang two lanterns in the belfry arch.
B) Hang one lantern in the church tower.
C) Signal those in the North Church tower.
Eliminate
D) Ride through the country to spread the word.