SSD solid state drives can be divided into SLC, MLC, TLC according to the particles. Which of the following statements about these three particles is correct?

SSD solid state drives can be divided into SLC, MLC, TLC according to the particles. Which of the following statements about these three particles is correct?
A . The capacity of MLC is double of SLC, life is also doubled
B . SLC using both positive and negative charges, a floating gate memory 1 bit of information, the MLC using charges of different potentials. 1 floating gate memory 2 bit of information, TLC using charges of different potentials. 1 floating gate memory 6 bit of information.
C . Although the storage capacity of TLC chips has increased, the cost is much lower, but because the performance is also greatly reduced, it can only be used in low-end NANDFlashx related products
D . The capacity of TLC is 3 times of MLC, but it is the shortest life

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Answer: C