Question

Second opinion needed on tone. Thank you!

Impetuous son that tree young and strong
That tree there
In splendid loveliness amidst white and faded flowers
That is Africa your Africa
That grows again patiently obstinately
And its fruit gradually acquires
The bitter taste of liberty

Which word best describes the tone created by these lines?
~Consoling
~Firm
~Resentful
~Stubborn

I believe it to be either 'consoling' or 'resentful', but I cannot tell. Thank you!