Choose the pattern that completes the sequence shown below.
The three horizontal rows evolve by independent, simple rules from frame to frame (left to right).
Row 1 (top): The last symbol alternates between a forward slash and a backslash: \[ /,\ \backslash,\ /,\ \backslash,\ \ldots \] The third frame shows \(/\), so the fourth must be \(\backslash\). Options (B) and (D) satisfy this; (A) and (C) do not.
Row 2 (middle): The side brackets cycle deterministically while the centre “\#” stays fixed. Track the left symbol across the first three frames: \[ [\ \to\ )\ \to\ ]\ \to\ \ ? \] i.e., it follows the cycle \([\,\to\,)\,\to\,]\,\to\,(\,\to\,[\,.s)\). Hence the fourth frame should have a left \((\).
Track the right symbol: \[ )\ \to\ (\ \to\ )\ \to\ \ ? \] so it alternates \( ) \leftrightarrow ( \); therefore the fourth frame should have a right \( ) \). Putting these together, Row 2 in the answer must read \[ (\ \#\ ) \] which only option (B) has. (A) gives \([\,\#\,(\), (C) gives \([\,\#\,)\), and (D) gives \(]\,\#\,)\).
Row 3 (bottom): The symbols remain fixed across frames (=\ %\ x), so all options match this row; it does not discriminate.
Combining the row-wise rules, the unique match is \(\boxed{(B)}\).
Identify the option that will replace the question mark. 
Identify the option that will replace the question mark. 
An intersection is a point where two or more lines/curves meet or cross. How many intersections are there in the figure given below? 

The drawing shows the figure of a horse with the point (marked with a red dot) where the pelvic girdle meets the vertebral column. Which of the options shows simplified bone linkages for the hind leg of the horse beginning with the red dot? 



