Two blocks are connected by a string as shown in the diagram. The upper block is hung by another string. A force F applied on the upper string produces an acceleration of \[2m/{{s}^{2}}\] in the upward direction in both the blocks. If T and \[{T}'\] be the tensions in the two parts of the string, then [AMU (Engg.) 2000]

• A.             \[T=70.8N\] and \[{T}'=47.2N\]
• B.             \[T=58.8N\] and \[{T}'=47.2N\]
• C.             \[T=70.8N\] and \[{T}'=58.8N\]
• D.             \[T=70.8N\] and \[{T}'=0\]