Which line creates a bright and cheery tone? fog rolled thickly over the fields, shrouding them in the gray and brown colors of winter. light bounced across the water, shimmering on the surface like jewels. the house creaked and groaned like an old woman trailing a history of grief. the golden red leaves shimmered in the light wind, and lit the edges of the cold day.

Option b. the following line creates a bright and cheery tone: light bounced across the water, shimmering on the surface like jewels.

Explanation:

In writing, the tone is the attitude of the writer toward a specific subject or the audience. The tone is conveyed through the writer's choice of words and the viewpoint in which the writer chooses to tell the story. The sentence "light bounced across the water, shimmering on the surface like jewels" creates a bright and cheery tone, with the use of words such as "bounced" "shimmering" and "jewels" which all reinforce a positive, happy and upbeat scenario.

summer because you get to tan and wear cooler clothes and go to the beach

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.