How does a historian draw conclusions from a chart?

a. by noting the perspective of the chart’s author
b. by identifying the relationships between bits of data
c. by locating cause and effect through sequencing
d. by observing how the information in the chart has changed since it’s creation

it think it might be b but i’m not sure

C.Bt locating cause and effect through sequencing

acts of terrorism occur globally. the united nations global counter-terrorism strategy was created in order to build adequate systems of support and solidarity with victims of terrorism. here´s a summary of the proposed key themes: the importance of giving victims a face and a voice; protecting their dignity; giving victims legal status and defending their legal rights; providing victims with medical, psycho-social and financial support; building solidarity with victims; improving media coverage of victims; and focusing on the link between victims and counter-terrorism efforts more generally.