Table:
0
A
B
C
D
E
1
Team
No #
Driver(s)
Sponsor(s)
Test Drivers
2
Newman/Haas/Lanigan Racing
1
Justin Wilson
McDonald's
N/A
3
Newman/Haas/Lanigan Racing
2
Graham Rahal
McDonald's
N/A
4
Forsythe/Pettit Racing
3
Paul Tracy
INDECK
N/A
5
Forsythe/Pettit Racing
7
Franck Montagny
INDECK
N/A
6
Minardi Team USA
4
E. J. Viso
PDVSA
N/A
7
Minardi Team USA
14
Robert Doornbos
Muermans Group/Jumbo Supermarkets/ OzJet
N/A
8
Team Australia
5
Will Power
Aussie Vineyards
N/A
9
Team Australia
15
Matt Halliday
Aussie Vineyards
N/A
10
Rocketsports Racing
8
Enrique Bernoldi
Sangari
N/A
11
Dale Coyne Racing
11
Bruno Junqueira
TBA
N/A
12
Dale Coyne Racing
19
Mario Moraes
Sonny's Real Pit Bar-B-Q
N/A
13
KV Racing Technology
21
Alex Tagliani
TBA
N/A
14
KV Racing Technology
22
Oriol Servià
TBA
N/A
15
Pacific Coast Motorsports
29
Alex Figge
Imperial Capital Bank
David Martínez
16
Pacific Coast Motorsports
96
Mario Domínguez
Mexico City Tourism Board
David Martínez
17
Conquest Racing
24
Franck Perera
ARES
N/A
18
Conquest Racing
34
Nelson Philippe
Juniper Property Development Group
N/A

Questions and formulas:
Question: Which Driver has a Sponsor of pdvsa?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="pdvsa"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,D2:D18="pdvsa"),3))
Level: medium