Which of the following can establish whether all elements of a sequence:

a. increasing = True
for index in range(1, len(sequence)):
if sequence[index-1] > sequence[index]:
increasing = False
print(increasing)

b. increasing = True
for index in range(1, len(sequence)):
if sequence[index-1] >= sequence[index]:
increasing = False
print(increasing)

c. increasing = True
for index in range(1, 7):
if sequence[index-1] < sequence[index]:
increasing = False
print(increasing)

d. increasing = True
for index in range(1, 7):
if sequence[index-1] <= sequence[index]:
increasing = False
print(increasing)

e. increasing = True
for index in range(1, len(sequence)):
if sequence[index-1] < sequence[index]:
increasing = False
print(increasing)