$A$ thread is tied slightly loose to a wire frame as shown in the figure. The frame is dipped into a soap solution and taken out,such that the frame is completely covered with a soap film. When the portion $A$ is punctured with a pin,the thread:

  • A
    Becomes concave toward $A$
  • B
    Becomes convex towards $A$
  • C
    Remains in the initial position
  • D
    Either $(a)$ or $(b)$ depending on the size of $A$ w.r.t. $B$

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