Howie has a linked list created with node_t structure that contains an integer value field and a next field pointing to the next node. He wants to use GDB to examine the value of the second node in the list starting with head (a type node_t t ). Suggest Howie which GDB command he should use. USING 15 WORDS OR FEWER, explain how to understand function FOo' s output. ; Input: R1, a 16-bit unsigned integer ; Output: R1, 0 or 1 to indicate a property of input R1 ; Registers: R2 and R7 are caller-saved