Tatenda takes t seconds to mow a square meter of lawn and Ciara takes c seconds

Tatenda takes t seconds to mow a square meter of lawn and Ciara takes c seconds to mow a square meter of lawn. Tatenda mows 700 square meters of lawn per week and Ciara mows 750 square meters of lawn per week.
Which expressions can we use to describe how many more seconds Tatenda spends than Ciara spends mowing lawns during 4 weeks?
Choose 2 answers:

A
4(750c-700t)

B
3000c+2800t

C
2800t-3000c

D
4(700t-750c)

E
4(700t+750c)