Work hard and do what I like to do
Try finishing your work every day
And help people who need help with work
I believe it is A the first one
I believe the answer is: strong, stern, and assertive.
The speech above is specifically made to address woman issue that arise in 1848, when women were openly discriminated against the society.
To gained reader's support on serious issue like this, it is important to use strong, stern, and assertive tone. This could be seen on the monotone statements and formal language that issued in the speech