Arrange the following statements to create the proper order of events in the humoral immune response:
1. The helper T cell interacts with the antigen presented in an MHC-II molecule.
2. The B cell divides to produce memory B cells and effector B cells.
3. Antibodies specific for the antigen are produced in large numbers.
4. The helper T cell secretes interleukin-2.
5. The B cell presents antigen fragments specific for its surface antibodies using MHC-II molecules on the cell surface.
A.1, 3, 2, 5, 4
B.5, 1, 4, 2, 3
B.3, 4, 2, 5, 1
C.4, 2, 5, 1, 3
D.2, 4, 3, 1, 5
Plz help , Thx

The peptide:MHC class II complex can be recognized by antigen-specific armed ... Some microbial antigens can activate B cells directly in the absence of T-cell help. ... 9-1. The humoral immune response is initiated when B cells that bind antigen ... cells presenting these internal peptides can then activate the B cell to make .      Explanation:

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

what is the statement?