in china there are some popular gold fund such as the huaan gold etf $,$ bosera gold etf and teh E FUND GOLD ETF $.$ SIFT THOSE FUNDS AND WRITE THE REASON $.$ When sifting through the Bosera Gold ETF, consider these factors:

$1.**$Expense Ratio$**-$ How does Bosera's management fee compare to other gold ETFs?

$2.**$Liquidity$**-$ Is the trading volume high enough to enter and exit positions easily?

$3.**$Tracking Accuracy$**-$ Does the ETF closely follow the spot price of gold?

$4.**$Asset Holdings$**-$ Does it hold physical gold, or does it use derivatives?

$5.**$Historical Performance$**-$ How has the fund performed over the years in various market conditions?

These points will help you understand if the Bosera Gold ETF aligns with the investment strategies and asset holdings you're considering for your group project.

PLEASE DO THE SAME SIFTING PROCEDURE TO THE E GOLD FUND ETF AND HUANAN ETF $.$