The following sentence communicates a(n) tone. "now is the time to lift our national policy from the quicksand of racial injustice to the solid rock of human dignity." scolding disappointed urgent determined

Determined is your answer

Note the words "Now is the time...", which means that  he is determined to change the policy of the nation, from racial injustice to human dignity.

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explanation:

the tone of the passage is sympathetic to the forbidden love of romeo and juliet. the nurse plays a significant role in the play. she is responsible for making their meeting again possible. additionally, there is a sense of warning in the choice of words of the nurse. she seems to be authoritative when she calls romeo "scurvy knave", and at the same time the fact that she addresses to him as "sir" reflects respect. the nurse is "vexed", this word describes her confused state of mind. on the one hand, she finds romeo a fine and eloquent man, but on the other, it is thought that man's nature forces men to try to trick women.