Which word best describes the mood of this passage?

this was another hard day. we had expected an easier road down the mountains after crossing the main ridge, but were disappointed. our road to-day was very rough, up and down mountains all the way.

a. determined
b. exhausted
c. optimistic
d. relieved

In 250-300 words, explain how the theme of social justice is explored in the novel. {to kill a mockingbird}

Biologists recognize five levels of cell organization. the lowest and simplest is the cellular level. organisms here are either unicellular organisms, like protozoa, or colonial organisms. colonial organisms are composed of single-celled individuals that stay together to sustain the life of the whole colony. next on the scale of complexity is the level occupied by tissue. a tissue is a group of similar cells which perform a similar activity. tissues that are organized around a common function together make up an organ, the third level of complexity. the fourth level of organization is the system, formed by a group of organs which together perform a specific bodily process. the fifth and highest level is the organism level, in which body systems work together in a structure capable of independent life. main idea:

The room was gaudy with its leather couch and purple walls