Which statement correctly compares how measured and defined values are treated in calculations? A. Measurements do not affect the number of significant figures in a calculation while defined values do affect this number
B. Measurements and defined values affect the number of significant figures in a calculated number
C. Neither measurements nor defined values affect significant figures. Only non-zero digits matter
D. Measurement values affect the number of significant figures in a calculation while definitions do not affect this number
(Can I also get a small explanation as to why it is the answer, please? Thanks)