Table:
0
A
B
C
D
E
F
1
Pennant number
Ship
Builder
Laid down
Launched
Commissioned
2
D03
Icarus †
John Brown & Company , Clydebank
9 March 1936
26 November 1936
3 May 1937
3
D61
Ilex
John Brown & Company , Clydebank
9 March 1936
28 January 1937
7 July 1937
4
D44
Imogen
Hawthorn Leslie & Company , Hebburn
18 January 1936
30 October 1936
2 June 1937
5
D09
Imperial
Hawthorn Leslie & Company , Hebburn
29 January 1936
11 December 1936
30 June 1937
6
D11
Impulsive †
J. Samuel White , Cowes
9 March 1936
1 March 1936
29 January 1938
7
D02
Inglefield
Cammell Laird & Company , Birkenhead
29 April 1936
15 October 1936
25 June 1937
8
D10
Intrepid †
John I. Thornycroft & Company , Woolston
6 January 1936
17 December 1936
29 July 1937
9
D87
Isis
Yarrow & Company , Scotstoun
5 February 1936
12 December 1936
2 June 1937
10
D16
Ivanhoe †
Yarrow & Company , Scotstoun
12 February 1936
11 February 1937
24 August 1937

Questions and formulas:
Question: Who is the builder of Pennant d03?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="d03"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10="d03"),3))
Level: medium