10 points
this word means that one event happens at the same time as another event:
a. correlation
b. causation
c. observation
d. occurence

occurrence

Hope it helps.

Sorry if Wrong

D. occurrence is your answer.

Explanation:

Correlation means a mutual relationship or connection between two or more things.

Causation means the action of causing something.

Observation means the action or process of observing something or someone carefully or in order to gain information.

So your only answer is occurrence.

D. occurrence is your answer.

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

prism b but im not for sure