Question: what is the meaning of cc and bcc
[{'answer': 'Carbon copy to secondary recipients', 'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'start_paragraph_id': 7, 'start_character': 16, 'end_paragraph_id': 7, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Carbon copy', 'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'start_paragraph_id': 0, 'start_character': 6, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Blind carbon copy', 'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Blind carbon copy to tertiary recipients who receive the message'}, {'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 329, 'bleu_score': 0.712140649658845, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5576516959750530324}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'section': 'Section::::Abstract.', 'start_paragraph_id': 7, 'end_paragraph_id': 7, 'meta': {'evidence_span': ['BULLET::::- Cc: Carbon copy to secondary recipientsother interested parties', 'Cc: Carbon copy to secondary recipientsother interested parties']}}]}, {'provenance': [{'wikipedia_id': '59179098', 'title': 'Carbon capture and utilization', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Carbon capture and utilization (CCU) is the process of capturing carbon dioxide (CO) to be recycled for further usage. Carbon capture and utilization may offer a response to the global challenge of significantly reducing greenhouse gas emissions from major stationary (industrial) emitters. CCU differs from Carbon Capture and Storage (CCS) in that CCU does not aim nor result in permanent geological storage of carbon dioxide. Instead, CCU aims to use the captured carbon dioxide for conversion into other substances or products with higher economic value (e.g. plastics, concrete, biofuel) while retaining the carbon neutrality of the production processes.', 'Carbon capture and utilization (CCU) is the process of capturing carbon dioxide (CO) to be recycled for further usage. Carbon capture and utilization may offer a response to the global challenge of significantly reducing greenhouse gas emissions from major stationary (industrial) emitters. CCU differs from Carbon Capture and Storage (CCS) in that CCU does not aim nor result in permanent geological storage of carbon dioxide. Instead, CCU aims to use the captured carbon dioxide for conversion into other substances or products with higher economic value (e.g. plastics, concrete, biofuel) while retaining the carbon neutrality of the production processes.\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '58783073', 'title': 'CCS and climate change mitigation', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Carbon capture and storage (CCS) is a method used to reduce the amount of anthropogenic emissions of carbon dioxide (CO) in the atmosphere in an attempt to limit the effects of global climate change. CCS is can be employed to achieve a number of goals regarding climate change mitigation, such as preventing average global temperature from reaching certain levels above the pre-industrial average. In December 2015, the Paris Agreement articulated a census to not exceed pre-industrial global temperatures by more than 2°C and recognized that different countries would have different contributions to help realize this goal. Under the Paris Agreement, different scenarios and climate models were analyzed for different temperature goals considering a wide range of mitigation methods from a temperature goal of less than 2°C to an upper limit of exactly 2°C increase above the pre-industrial average.', 'Carbon capture and storage (CCS) is a method used to reduce the amount of anthropogenic emissions of carbon dioxide (CO) in the atmosphere in an attempt to limit the effects of global climate change. CCS is can be employed to achieve a number of goals regarding climate change mitigation, such as preventing average global temperature from reaching certain levels above the pre-industrial average. In December 2015, the Paris Agreement articulated a census to not exceed pre-industrial global temperatures by more than 2°C and recognized that different countries would have different contributions to help realize this goal. Under the Paris Agreement, different scenarios and climate models were analyzed for different temperature goals considering a wide range of mitigation methods from a temperature goal of less than 2°C to an upper limit of exactly 2°C increase above the pre-industrial average.']}}]}, {'provenance': [{'wikipedia_id': '357107', 'title': 'Blind carbon copy', 'section': 'Section::::Abstract.', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 329, 'bleu_score': 0.755642467031144}]}]