单项选择题

Which statement is the best description of the new era of factory farming according to the first paragraph

A．Eggs are all genetically engineered.
B．Thousands of eggs are produced every hour.
C．Cloned chickens are bulk-produced with the same growth rate, weight and taste.
D．Identical eggs can be hatched on the production lines.
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单项选择题
With the technology of freezing stem cells from different strains of chicken, ______.
A．chicken farmers can order certain strains of chicken for economic reasons
B．origen can hardly supply all the strains of chicken the market might need
C．chicken farmers can order certain strains of chicken only
D．origen can be supplied with whatever strain they need
单项选择题
By saying Producers would like the same meat quantity but to use reduced inputs to get there (Line 2-3, Para. 3), Mike suggests that ______.
A．chicken's quality could be maintained but with less investment
B．chickens' taste could be improved but at less costs
C．chicken's growth rate could be quickened with less inputs
D．chickens could grow to the same weight but with less feed
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