User 1 spreads its bipolar data (101) with the first sequence of the OVSF tree and user 2 spreads its bipolar data (001) with the last sequence of the tree (SF=4). Give the received signal at NodeB.

Select one:

a. Sum of received signals= -2,0,0,-2 2,0,0,2 0,2,2,0

b. Sum of received signals= 0,2,2,0 -2,0,0,-2 2,0,0,2

c. Sum of received signals= 0,-2,-2,0 2,0,0,2 -2,0,0,-2

d. Sum of received signals= 2,2,2,2 - 2-,2,-2,-2 2,2,2,2