please help

When coding in LC-3, there are many ways to check that two registers (say R1 and R2) values are equal. Which statement below is true? Yantnz: You use the AND instruction between the two registers. The outcome is 1 if they are equal and otherwise. From there you use a simple conditional branch instruction You use the Division instruction Div between register R1 and R2. If the outcome is 1 then they are equal. From there you use a simple conditional branch instruction You store their difference in a register and compare the register content to zero using the BRz instruction You use the CR (Compare Register) instruction which directly compares two register values Add the following 8-bit unsigned binary numbers. 110100112 + 010101102 Yantnz: 100101001 0000101001 100101001 000101001