Having some trouble understanding 18 and 19

1s Which one of the factors is least likely to be associated with the large US trade eficit A. low savings rate in the US B. low investment opportunity in the US C. high spending rate, relative to income levels in the US D, high value of the US dollar in the foreign exchange market 9 The Chinese government holds t20% of the US Treasury securities. If the US trade deficit with China increases, the most likely impact of this will be to: A) Increase the Chinese share in the US treasury market. B) Decrease the Chinese share in the US treasury market. C) It will have no impact on the Chinese share in the US treasury market