Sieve-tube elements found in Angiosperms are: A. Sieve tube B. P-protein present C. P-protein absent D. Sieve-plate E. Companion cells Choose the correct answer from the options given below:
1
A, B, D, E only
2
A, C, D, E only
3
A, B, C, D, E only
4
A, B, E only