Plan C means that a class of partial stock funds adopt the charging method of Class C, that is, when investing in partial stock funds, the subscription and redemption fees are exempted, and only 0.4-0.6%/ year sales service fee is charged. The sales service fee is accrued daily according to the customer's fund assets, accumulated daily, and settled upon redemption or conversion.
The disadvantage is that it is not worth taking for a long time.
The annual service fee is always charged, so if you hold it for more than 1 year, you may wish to choose the mode with subscription fee.
If it is less than one year or short-term redemption, it is more appropriate to choose C.