问题如下图：
选项：
A. 
B. 
C. 
解释：
老师您好，请问C如何理解？
NO.PZ2015121801000133问题如下 Tacticasset allocation is best scribeas:A.attempts to exploit arbitrage possibilities among asset classes.B.the cision to liberately viate from the poliportfolio.C.selecting asset classes with the sireexposures to sources of systematic risk in investment portfolio.is correct.Tacticasset allocation allows actuasset allocation to viate from thof the strategic asset allocation (poliportfolio) of the IPS. Tacticasset allocation attempts to take aantage of temporary slocations from the market contions anassumptions thove the poliportfolio cision.请问这道题的知识点在哪里，谢谢
NO.PZ2015121801000133 问题如下 Tacticasset allocation is best scribeas: A.attempts to exploit arbitrage possibilities among asset classes. B.the cision to liberately viate from the poliportfolio. C.selecting asset classes with the sireexposures to sources of systematic risk in investment portfolio. is correct.Tacticasset allocation allows actuasset allocation to viate from thof the strategic asset allocation (poliportfolio) of the IPS. Tacticasset allocation attempts to take aantage of temporary slocations from the market contions anassumptions thove the poliportfolio cision. Tacticasset allocation (TA可以理解为赚Alpha 吗？和S的关系可以理解为是 在市场变变化下允许对S短暂偏离的政策吗？
NO.PZ2015121801000133 问题如下 Tacticasset allocation is best scribeas: A.attempts to exploit arbitrage possibilities among asset classes. B.the cision to liberately viate from the poliportfolio. C.selecting asset classes with the sireexposures to sources of systematic risk in investment portfolio. is correct.Tacticasset allocation allows actuasset allocation to viate from thof the strategic asset allocation (poliportfolio) of the IPS. Tacticasset allocation attempts to take aantage of temporary slocations from the market contions anassumptions thove the poliportfolio cision. B的翻译好奇怪，“故意偏离政策组合的决定”，中文上应该怎么理解好一些
A到底错在哪...TAA不也是对大类资产类别的分配吗
抓短线机会不就是套利吗，A怎么理解 错在among asset classes了吗
