PLEASE HALP Read the excerpt from "Black Hole Beginnings."

Before a star is a star, it is an enormous cloud of gases. At the start, wisps of gas and drifts of dust collect, their gravity drawing them together. As more stuff gathers, its combined gravitation grows stronger.
Which image would best support a reader's understanding of the text?
A. The sun, a large, glowing sphere.
B. A swirl of gases.
C. A dark colored sphere with a black center and a haze of gases surrounding it.
D. Lines of bright light extending from a bright center.

A(n) is an alliance or collection of parties.

In at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution

Aresearcher conducting behavioral research collects individually identifiable sensitive information about illicit drug use and other illegal behaviors by surveying college students. the data are stored on a laptop computer without encryption, and the laptop computer is stolen from the researcher’s car on the way home from work. this is an unanticipated problem that must be reported because the incident was (a) unexpected (i.e., the researchers did not anticipate the theft); (b) related to participation in the research; and (c) placed the subjects at a greater risk of psychological and social harm from the breach in confidentiality of the study data than was previously known or recognized. according to ohrp, this unanticipated problem must be reported to the irb in which timeframe? promptlywithin 48 hourswithin 24 hourswithin two weeks