单选题：In the i-node of a file there are 10 direct pointers, 1 indirect

In the i-node of a file there are 10 direct pointers, 1 indirect indexed pointer and 1 double indirect indexed pointer, the block size is 1KB. Also assume that the block size is 1 Kbytes, each indexed pointer is 4 bytes. If the file's i-node is already in memory. In order to read the data at the offset 1234 into memory, how many disk blocks are required to access?@[A](1)
A. 1
B. 2
C. 3
D. 4





A.1
B.2
C.3
D.4


答案：A